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2(z+1)=5(z-2)7
We move all terms to the left:
2(z+1)-(5(z-2)7)=0
We multiply parentheses
2z-(5(z-2)7)+2=0
We calculate terms in parentheses: -(5(z-2)7), so:We get rid of parentheses
5(z-2)7
We multiply parentheses
35z-70
Back to the equation:
-(35z-70)
2z-35z+70+2=0
We add all the numbers together, and all the variables
-33z+72=0
We move all terms containing z to the left, all other terms to the right
-33z=-72
z=-72/-33
z=2+2/11
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