3(x+2)=21+2.5x

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Solution for 3(x+2)=21+2.5x equation: 



3(x+2)=21+2.5x

We move all terms to the left:

3(x+2)-(21+2.5x)=0

We add all the numbers together, and all the variables

3(x+2)-(2.5x+21)=0

We multiply parentheses

3x-(2.5x+21)+6=0

We get rid of parentheses

3x-2.5x-21+6=0

We add all the numbers together, and all the variables

0.5x-15=0

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

0.5x=15

x=15/0.5

x=30

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