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(2a-13)+(3a+4)=-6 (a-8)-(1+9a)
We simplify the equation to the form, which is simple to understand
(2a-13)+(3a+4)=-6(a-8)-(1+9a)
Remove unnecessary parentheses
2a-13+(3a+4)=-6*(a-8)-(1+9a)
Remove unnecessary parentheses
+2a-13+3a+4=-6+*(+a-8+)-(+1+9a+)
Reorder the terms in parentheses
2a-133a+4=+(-6a+48)-(1+9a)
Remove unnecessary parentheses
+2a-13+3a+4=-6a+48-(+1+9a+)
Remove unnecessary parentheses
2a-133a+4=-6a+48-1-9a
We move all terms containing a to the left and all other terms to the right.
+2a+3a+6a+9a=+48-1+13-4
We simplify left and right side of the equation.
+20a=+56
We divide both sides of the equation by 20 to get a.
a=2.8
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