S=(3.14*r)*(3.14*r)+2*(3.14)*r*h

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Solution for S=(3.14*r)*(3.14*r)+2*(3.14)*r*h equation: 


Simplifying
S = (3.14r)(3.14r) + 2(3.14) * r * h

Remove parenthesis around (3.14r)
S = 3.14r(3.14r) + 2(3.14) * r * h

Remove parenthesis around (3.14r)
S = 3.14r * 3.14r + 2(3.14) * r * h

Reorder the terms for easier multiplication:
S = 3.14 * 3.14r * r + 2(3.14) * r * h

Multiply 3.14 * 3.14
S = 9.8596r * r + 2(3.14) * r * h

Multiply r * r
S = 9.8596r2 + 2(3.14) * r * h

Multiply 2 * 3.14
S = 9.8596r2 + 6.28r * h

Multiply r * h
S = 9.8596r2 + 6.28hr

Reorder the terms:
S = 6.28hr + 9.8596r2

Solving
S = 6.28hr + 9.8596r2

Solving for variable 'S'.

Move all terms containing S to the left, all other terms to the right.

Simplifying
S = 6.28hr + 9.8596r2

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