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2 - 6 (3z + 7) = 3(9z +2) -7
We simplify the equation to the form, which is simple to understand
2-6(3z+7)=3(9z+2)-7
Reorder the terms in parentheses
2+(-18z-42)=3*(9z+2)-7
Remove unnecessary parentheses
+2-18z-42=+3+*(+9z+2+)-7
Reorder the terms in parentheses
2-18z-42=+(+27z+6)-7
Remove unnecessary parentheses
+2-18z-42=+27z+6-7
We move all terms containing z to the left and all other terms to the right.
-18z-27z=+6-7-2+42
We simplify left and right side of the equation.
-45z=+39
We divide both sides of the equation by -45 to get z.
z=-0.866666666667
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