2(5x+x)-4x=21

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Solution for 2(5x+x)-4x=21 equation: 



2(5x+x)-4x=21

We move all terms to the left:

2(5x+x)-4x-(21)=0

We add all the numbers together, and all the variables

2(+6x)-4x-21=0

We add all the numbers together, and all the variables

-4x+2(+6x)-21=0

We multiply parentheses

-4x+12x-21=0

We add all the numbers together, and all the variables

8x-21=0

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

8x=21

x=21/8

x=2+5/8

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