3(x-5)-4=21

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



3(x-5)-4=21

We move all terms to the left:

3(x-5)-4-(21)=0

We add all the numbers together, and all the variables

3(x-5)-25=0

We multiply parentheses

3x-15-25=0

We add all the numbers together, and all the variables

3x-40=0

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

3x=40

x=40/3

x=13+1/3

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