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2(3.14)4(4)+2(3.14)(4)7.9=0
We simplify the equation to the form, which is simple to understand
2(3.14)4(4)+2(3.14)*(4)7.9=0
Reorder the terms in parentheses
+(+6.28)*4*(4)+2*(3.14)*(4)*7.9=0
Reorder the terms in parentheses
+(+25.12)*(4)+2*(3.14)*(4)*7.9=0
Reorder the terms in parentheses
multiplication of parentheses
+(+100.48)+2*(3.14)*(4)*7.9=0
Remove unnecessary parentheses
+100.48+2+*(+3.14+)+*(+4+)+*7.9=0
Reorder the terms in parentheses
multiplication of parentheses
+100.48+2*(+12.56)*7.9=0
Reorder the terms in parentheses
+100.48+(+25.12)*7.9=0
Reorder the terms in parentheses
+100.48+(+198.448)=0
Remove unnecessary parentheses
+100.48+198.448=0
We move all terms containing to the left and all other terms to the right.
0=0-100.48-198.448
We simplify left and right side of the equation.
0=-298.928
0=-298.928
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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