Simplifying Algebraic Expressions

[Jimmy84]

Homework Statement

simplify 4[12-3(8-5)]-1

and simplify 5x-3{2x-2[x-2(1-x)]}

Homework Equations

The Attempt at a Solution

 

[Norway]

The attempt at a solution, please.

 

[Jimmy84]

The attempt at a solution, please.

I haven't reviewed any algebra for years so I don't remeber how could this be simplified.

what i tried was

in 4[12-3(8-5)]-1 I just tried to sovle 4[ 9(3)]-1 = 4[27]-1 = 4 [26] = 104
but I guess that's not what i was told to do.

 

[Mark44]

The first one is just arithmetic - not algebra.

4[12 - 3(8 - 5)] - 1

Take care of the operations inside of parentheses or brackets first, then multiplications, and finally additions/subtractions.

In particular 12 - 3(8 -5) is not equal to 9(8 - 5).

Keep the same ideas in mind for the second problem.