15z-4z=-55

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Solution for 15z-4z=-55 equation: 



15z-4z=-55

We move all terms to the left:

15z-4z-(-55)=0

We add all the numbers together, and all the variables

11z+55=0

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

11z=-55

z=-55/11

z=-5

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