3(4x-5)-5=7x+15

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Solution for 3(4x-5)-5=7x+15 equation: 



3(4x-5)-5=7x+15

We move all terms to the left:

3(4x-5)-5-(7x+15)=0

We multiply parentheses

12x-(7x+15)-15-5=0

We get rid of parentheses

12x-7x-15-15-5=0

We add all the numbers together, and all the variables

5x-35=0

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

5x=35

x=35/5

x=7

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