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0.4(8x+72)=3.2(x+9)
We simplify the equation to the form, which is simple to understand
0.4(8x+72)=3.2(x+9)
Reorder the terms in parentheses
+(+3.2x+28.8)=3.2*(x+9)
Remove unnecessary parentheses
+3.2x+28.8=+3.2+*(+x+9+)
Reorder the terms in parentheses
+3.2x+28.8=+(+3.2x+28.8)
Remove unnecessary parentheses
+3.2x+28.8=+3.2x+28.8
We move all terms containing x to the left and all other terms to the right.
+3.2x-3.2x=+28.8-28.8
We simplify left and right side of the equation.
0x=0
0=0
This equation is an identity, so all real numbers are solutions.
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