7x-5(3x-30)=78

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Solution for 7x-5(3x-30)=78 equation: 



7x-5(3x-30)=78

We move all terms to the left:

7x-5(3x-30)-(78)=0

We multiply parentheses

7x-15x+150-78=0

We add all the numbers together, and all the variables

-8x+72=0

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

-8x=-72

x=-72/-8

x=+9

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