7(1+5x)-5=142

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Solution for 7(1+5x)-5=142 equation: 



7(1+5x)-5=142

We move all terms to the left:

7(1+5x)-5-(142)=0

We add all the numbers together, and all the variables

7(5x+1)-5-142=0

We add all the numbers together, and all the variables

7(5x+1)-147=0

We multiply parentheses

35x+7-147=0

We add all the numbers together, and all the variables

35x-140=0

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

35x=140

x=140/35

x=4

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