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2(3.14)(5*5)+2(3.14)(5)(12)=d
We simplify the equation to the form, which is simple to understand
2(3.14)*(5*5)+2(3.14)*(5)*(12)=d
Simplifying:
2*(3.14)*(+25)+2*(3.14)*(5)*(12)=d
Reorder the terms in parentheses
multiplication of parentheses
2*(+78.5)+2*(3.14)*(5)*(12)=d
Reorder the terms in parentheses
+(+157)+2*(3.14)*(5)*(12)=d
Remove unnecessary parentheses
+157+2+*(+3.14+)+*(+5+)+*(+12+)=+d
Reorder the terms in parentheses
multiplication of parentheses
+157+2*(+15.7)*(12)=d
Reorder the terms in parentheses
multiplication of parentheses
+157+2*(+188.4)=d
Reorder the terms in parentheses
+157+(+376.8)=d
Remove unnecessary parentheses
+157+376.8=+d
We move all terms containing d to the left and all other terms to the right.
-1d=-157-376.8
We simplify left and right side of the equation.
-1d=-533.8
We divide both sides of the equation by -01 to get d.
d=533.8
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