8.7=1.8(a+2)+1.5

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Solution for 8.7=1.8(a+2)+1.5 equation: 



8.7=1.8(a+2)+1.5

We move all terms to the left:

8.7-(1.8(a+2)+1.5)=0



We calculate terms in parentheses: -(1.8(a+2)+1.5), so:

1.8(a+2)+1.5

We multiply parentheses

1.8a+3.6+1.5

We add all the numbers together, and all the variables

1.8a+5.1

Back to the equation:

-(1.8a+5.1)



We get rid of parentheses

-1.8a-5.1+8.7=0

We add all the numbers together, and all the variables

-1.8a+3.6=0

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

-1.8a=-3.6

a=-3.6/-1.8

a=+2

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