15=3x+(x+5(1.5))+3x

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Solution for 15=3x+(x+5(1.5))+3x equation: 



15=3x+(x+5(1.5))+3x

We move all terms to the left:

15-(3x+(x+5(1.5))+3x)=0



We calculate terms in parentheses: -(3x+(x+5(1.5))+3x), so:

3x+(x+5(1.5))+3x

We add all the numbers together, and all the variables

6x+(x+5(1.5))



We calculate terms in parentheses: +(x+5(1.5)), so:

x+5(1.5)

We add all the numbers together, and all the variables

x+7.5

Back to the equation:

+(x+7.5)



We get rid of parentheses

6x+x+7.5

We add all the numbers together, and all the variables

7x+7.5

Back to the equation:

-(7x+7.5)



We get rid of parentheses

-7x-7.5+15=0

We add all the numbers together, and all the variables

-7x+7.5=0

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

-7x=-7.5

x=-7.5/-7

x=1+0.5/7

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