3=-2(10+y)

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Solution for 3=-2(10+y) equation: 



3=-2(10+y)

We move all terms to the left:

3-(-2(10+y))=0

We add all the numbers together, and all the variables

-(-2(y+10))+3=0



We calculate terms in parentheses: -(-2(y+10)), so:

-2(y+10)

We multiply parentheses

-2y-20

Back to the equation:

-(-2y-20)



We get rid of parentheses

2y+20+3=0

We add all the numbers together, and all the variables

2y+23=0

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

2y=-23

y=-23/2

y=-11+1/2

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