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(4z/9)+7=-7
We move all terms to the left:
(4z/9)+7-(-7)=0
We add all the numbers together, and all the variables
(+4z/9)+7-(-7)=0
We add all the numbers together, and all the variables
(+4z/9)+14=0
We get rid of parentheses
4z/9+14=0
We multiply all the terms by the denominator
4z+14*9=0
We add all the numbers together, and all the variables
4z+126=0
We move all terms containing z to the left, all other terms to the right
4z=-126
z=-126/4
z=-31+1/2
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