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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