3(4y+5)=-21

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Solution for 3(4y+5)=-21 equation:



3(4y+5)=-21
We move all terms to the left:
3(4y+5)-(-21)=0
We add all the numbers together, and all the variables
3(4y+5)+21=0
We multiply parentheses
12y+15+21=0
We add all the numbers together, and all the variables
12y+36=0
We move all terms containing y to the left, all other terms to the right
12y=-36
y=-36/12
y=-3

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