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5(2z+1)-8=77
We simplify the equation to the form, which is simple to understand
5(2z+1)-8=77
Reorder the terms in parentheses
+(+10z+5)-8=77
Remove unnecessary parentheses
+10z+5-8=+77
We move all terms containing z to the left and all other terms to the right.
+10z=+77-5+8
We simplify left and right side of the equation.
+10z=+80
We divide both sides of the equation by 10 to get z.
z=8
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