6y-21+7=4y-20+5

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Solution for 6y-21+7=4y-20+5 equation: 



6y-21+7=4y-20+5

We move all terms to the left:

6y-21+7-(4y-20+5)=0

We add all the numbers together, and all the variables

6y-(4y-15)-21+7=0

We add all the numbers together, and all the variables

6y-(4y-15)-14=0

We get rid of parentheses

6y-4y+15-14=0

We add all the numbers together, and all the variables

2y+1=0

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

2y=-1

y=-1/2

y=-1/2

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