2(-y+7)+3y=21

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Solution for 2(-y+7)+3y=21 equation:



2(-y+7)+3y=21
We move all terms to the left:
2(-y+7)+3y-(21)=0
We add all the numbers together, and all the variables
2(-1y+7)+3y-21=0
We add all the numbers together, and all the variables
3y+2(-1y+7)-21=0
We multiply parentheses
3y-2y+14-21=0
We add all the numbers together, and all the variables
y-7=0
We move all terms containing y to the left, all other terms to the right
y=7

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