7-4z=-9

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Solution for 7-4z=-9 equation: 



7-4z=-9

We move all terms to the left:

7-4z-(-9)=0

We add all the numbers together, and all the variables

-4z+16=0

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

-4z=-16

z=-16/-4

z=+4

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