3(5-7x)=30

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Solution for 3(5-7x)=30 equation: 



3(5-7x)=30

We move all terms to the left:

3(5-7x)-(30)=0

We add all the numbers together, and all the variables

3(-7x+5)-30=0

We multiply parentheses

-21x+15-30=0

We add all the numbers together, and all the variables

-21x-15=0

We move all terms containing x to the left, all other terms to the right

-21x=15

x=15/-21

x=-5/7

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