3x-14=-4x-21

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Solution for 3x-14=-4x-21 equation: 



3x-14=-4x-21

We move all terms to the left:

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

We get rid of parentheses

3x+4x+21-14=0

We add all the numbers together, and all the variables

7x+7=0

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

7x=-7

x=-7/7

x=-1

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