- #1
xeon123
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Hi,
I would like to solve this equation but I can't do it.
2x+1-((2x+3)/2)
Can you help me?
Thanks,
I would like to solve this equation but I can't do it.
2x+1-((2x+3)/2)
Can you help me?
Thanks,
First simplify the stuff in the parentheses: carry out the division.xeon123 said:2x+1-((2x+3)/2)
No.xeon123 said:This expression is the same as the following 2x+1-4x-6?
If you had an equation, you could multiply both sides by 2. But here you just have an expression. Divide by 2.I've multiplied ((2x+3)/2) by 2, and removed the parenthesis.
No, you can't just multiply by 2 and get the same result- and you surely can't multiply just part of an expression and expect to get any thing sensible. And, by the way, multiplying (2x+3)/2 by 2 would just cancel the 2 in the denominator to give 2x+ 3, not 4x+ 6.xeon123 said:This expression is the same as the following 2x+1-4x-6?
I've multiplied ((2x+3)/2) by 2, and removed the parenthesis.
HallsofIvy said:No, you can't just multiply by 2 and get the same result- and you surely can't multiply just part of an expression and expect to get any thing sensible. And, by the way, multiplying (2x+3)/2 by 2 would just cancel the 2 in the denominator to give 2x+ 3, not 4x+ 6.
You could write the first part as [itex](2/2)(2x+ 1)= (4x+2)/2[/itex] so you can add the fractions (remember getting a "common denominator" so you can add?):
[tex]\frac{4x+2}{2}- \frac{2x+3}{2}= \frac{4x+ 2- 2x- 3}{2}= \frac{2x- 1}{2}[/tex]
As already noted, this is not an equation, it's an expression. The best you can do with an expression is to rewrite it in a different and possibly more simplified form.xeon123 said:Hi,
I would like to solve this equation but I can't do it.
2x+1-((2x+3)/2)
This makes no sense in the context of this thread. The OP's problem is to simplify an expression. There is no equation.ratnesh dubey said:hi,
i write first equation than write second equation and less the second equation from first equation than get remainder this is our solution.
xeon123 said:Hi,
I would like to solve this equation but I can't do it.
2x+1-((2x+3)/2)
Can you help me?
Thanks,
To subtract two equations, you simply need to align them vertically and subtract each term of the second equation from the corresponding term in the first equation. This will result in a new equation with the combined terms.
Yes, as long as the variables have the same degree (exponent) and are being subtracted in the same order, you can subtract equations with different variables. However, keep in mind that the resulting equation may not have a solution if the variables are not related in any way.
Subtracting equations is essentially the same as adding equations, except that the signs of the terms in the second equation are flipped. This is because when you subtract a number from another number, you are essentially adding its opposite.
There is no specific order in which you should subtract terms, as long as you are consistent and keep track of which terms you have already subtracted. However, it may be helpful to start from the left and work your way to the right.
Yes, subtracting equations is a common method used to solve systems of equations. By subtracting one equation from another, you can eliminate one of the variables and solve for the remaining variable. However, this method may not always result in a solution, so it is important to check your work.