5(2-3z)-15=-(z+7)

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Solution for 5(2-3z)-15=-(z+7) equation: 



5(2-3z)-15=-(z+7)

We move all terms to the left:

5(2-3z)-15-(-(z+7))=0

We add all the numbers together, and all the variables

5(-3z+2)-(-(z+7))-15=0

We multiply parentheses

-15z-(-(z+7))+10-15=0



We calculate terms in parentheses: -(-(z+7)), so:

-(z+7)

We get rid of parentheses

-z-7

We add all the numbers together, and all the variables

-1z-7

Back to the equation:

-(-1z-7)



We add all the numbers together, and all the variables

-15z-(-1z-7)-5=0

We get rid of parentheses

-15z+1z+7-5=0

We add all the numbers together, and all the variables

-14z+2=0

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

-14z=-2

z=-2/-14

z=1/7

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