7v-40=7v-5(2-6v)

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Solution for 7v-40=7v-5(2-6v) equation: 



7v-40=7v-5(2-6v)

We move all terms to the left:

7v-40-(7v-5(2-6v))=0

We add all the numbers together, and all the variables

7v-(7v-5(-6v+2))-40=0



We calculate terms in parentheses: -(7v-5(-6v+2)), so:

7v-5(-6v+2)

We multiply parentheses

7v+30v-10

We add all the numbers together, and all the variables

37v-10

Back to the equation:

-(37v-10)



We get rid of parentheses

7v-37v+10-40=0

We add all the numbers together, and all the variables

-30v-30=0

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

-30v=30

v=30/-30

v=-1

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