4(x+14)+3(x+21)=21

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Solution for 4(x+14)+3(x+21)=21 equation: 



4(x+14)+3(x+21)=21

We move all terms to the left:

4(x+14)+3(x+21)-(21)=0

We multiply parentheses

4x+3x+56+63-21=0

We add all the numbers together, and all the variables

7x+98=0

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

7x=-98

x=-98/7

x=-14

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