15(1+z)=-20

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Solution for 15(1+z)=-20 equation: 



15(1+z)=-20

We move all terms to the left:

15(1+z)-(-20)=0

We add all the numbers together, and all the variables

15(z+1)-(-20)=0

We add all the numbers together, and all the variables

15(z+1)+20=0

We multiply parentheses

15z+15+20=0

We add all the numbers together, and all the variables

15z+35=0

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

15z=-35

z=-35/15

z=-2+1/3

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