3x=0.5(x+7+18)

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Solution for 3x=0.5(x+7+18) equation: 



3x=0.5(x+7+18)

We move all terms to the left:

3x-(0.5(x+7+18))=0

We add all the numbers together, and all the variables

3x-(0.5(x+25))=0



We calculate terms in parentheses: -(0.5(x+25)), so:

0.5(x+25)

We multiply parentheses

0.5x+12.5

Back to the equation:

-(0.5x+12.5)



We get rid of parentheses

3x-0.5x-12.5=0

We add all the numbers together, and all the variables

2.5x-12.5=0

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

2.5x=12.5

x=12.5/2.5

x=5

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