(7-2)(2+7z)=0

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Solution for (7-2)(2+7z)=0 equation: 



(7-2)(2+7z)=0

We add all the numbers together, and all the variables

5(7z+2)=0

We multiply parentheses

35z+10=0

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

35z=-10

z=-10/35

z=-2/7

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