20-4z=-12

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Solution for 20-4z=-12 equation:



20-4z=-12
We move all terms to the left:
20-4z-(-12)=0
We add all the numbers together, and all the variables
-4z+32=0
We move all terms containing z to the left, all other terms to the right
-4z=-32
z=-32/-4
z=+8

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