157=-7(4v-7)-8v

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Solution for 157=-7(4v-7)-8v equation:



157=-7(4v-7)-8v
We move all terms to the left:
157-(-7(4v-7)-8v)=0
We calculate terms in parentheses: -(-7(4v-7)-8v), so:
-7(4v-7)-8v
We add all the numbers together, and all the variables
-8v-7(4v-7)
We multiply parentheses
-8v-28v+49
We add all the numbers together, and all the variables
-36v+49
Back to the equation:
-(-36v+49)
We get rid of parentheses
36v-49+157=0
We add all the numbers together, and all the variables
36v+108=0
We move all terms containing v to the left, all other terms to the right
36v=-108
v=-108/36
v=-3

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