4(z+-1)=15

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Solution for 4(z+-1)=15 equation: 



4(z+-1)=15

We move all terms to the left:

4(z+-1)-(15)=0

We add all the numbers together, and all the variables

4(z-1)-15=0

We multiply parentheses

4z-4-15=0

We add all the numbers together, and all the variables

4z-19=0

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

4z=19

z=19/4

z=4+3/4

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