3(4x+5)-5=142

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Solution for 3(4x+5)-5=142 equation: 



3(4x+5)-5=142

We move all terms to the left:

3(4x+5)-5-(142)=0

We add all the numbers together, and all the variables

3(4x+5)-147=0

We multiply parentheses

12x+15-147=0

We add all the numbers together, and all the variables

12x-132=0

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

12x=132

x=132/12

x=11

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