3(x+2)-8x=21

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Solution for 3(x+2)-8x=21 equation: 



3(x+2)-8x=21

We move all terms to the left:

3(x+2)-8x-(21)=0

We add all the numbers together, and all the variables

-8x+3(x+2)-21=0

We multiply parentheses

-8x+3x+6-21=0

We add all the numbers together, and all the variables

-5x-15=0

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

-5x=15

x=15/-5

x=-3

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