7(-1+7y)=140

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Solution for 7(-1+7y)=140 equation: 



7(-1+7y)=140

We move all terms to the left:

7(-1+7y)-(140)=0

We add all the numbers together, and all the variables

7(7y-1)-140=0

We multiply parentheses

49y-7-140=0

We add all the numbers together, and all the variables

49y-147=0

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

49y=147

y=147/49

y=3

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