3x+7=42-5x

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Solution for 3x+7=42-5x equation:



3x+7=42-5x
We move all terms to the left:
3x+7-(42-5x)=0
We add all the numbers together, and all the variables
3x-(-5x+42)+7=0
We get rid of parentheses
3x+5x-42+7=0
We add all the numbers together, and all the variables
8x-35=0
We move all terms containing x to the left, all other terms to the right
8x=35
x=35/8
x=4+3/8

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