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2(2a+1)=10
We simplify the equation to the form, which is simple to understand
2(2a+1)=10
Reorder the terms in parentheses
+(+4a+2)=10
Remove unnecessary parentheses
+4a+2=+10
We move all terms containing a to the left and all other terms to the right.
+4a=+10-2
We simplify left and right side of the equation.
+4a=+8
We divide both sides of the equation by 4 to get a.
a=2
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