7x-2+40=4x+21

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Solution for 7x-2+40=4x+21 equation: 



7x-2+40=4x+21

We move all terms to the left:

7x-2+40-(4x+21)=0

We add all the numbers together, and all the variables

7x-(4x+21)+38=0

We get rid of parentheses

7x-4x-21+38=0

We add all the numbers together, and all the variables

3x+17=0

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

3x=-17

x=-17/3

x=-5+2/3

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