7-15=4z

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Solution for 7-15=4z equation:



7-15=4z
We move all terms to the left:
7-15-(4z)=0
We add all the numbers together, and all the variables
-4z-8=0
We move all terms containing z to the left, all other terms to the right
-4z=8
z=8/-4
z=-2

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