Please help me solve this % numerical chemistry problem

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SUMMARY

The discussion centers on solving a numerical chemistry problem involving the mixing of two solutions with different concentrations of sulphuric acid. The first solution is 150g at 20% concentration, and the second solution is x grams at 70% concentration. The goal is to determine the value of x that results in a final mixture containing 30% sulphuric acid by mass. The participants emphasize the importance of showing detailed reasoning and calculations rather than just presenting numbers.

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Ifrah tahir
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Homework Statement
150g of a solution which is 20% sulphuric acid (by mass) are added to x grams of a solution which is 70% sulphuric acid (by mass). What must be the value of x so that the final mixture shall contain 30% sulphuric acid (by mass)?
Relevant Equations
None
I've tried both c1v1 and unitary method but couldn't solve
 

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Ifrah tahir said:
Homework Statement:: 150g of a solution which is 20% sulphuric acid (by mass) are added to x grams of a solution which is 70% sulphuric acid (by mass). What must be the value of x so that the final mixture shall contain 30% sulphuric acid (by mass)?
Relevant Equations:: None

I've tried both c1v1 and unitary method but couldn't solve
Your attempt is just a lot of numbers. Please provide your reasoning.
Take the trouble to type in your work. Images are just for diagrams and printed text.
 
Also, there is a way to make your smart phone camera focus.
 

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