3(5c)+8=21

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Solution for 3(5c)+8=21 equation:


Simplifying
3(5c) + 8 = 21

Remove parenthesis around (5c)
3 * 5c + 8 = 21

Multiply 3 * 5
15c + 8 = 21

Reorder the terms:
8 + 15c = 21

Solving
8 + 15c = 21

Solving for variable 'c'.

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

Add '-8' to each side of the equation.
8 + -8 + 15c = 21 + -8

Combine like terms: 8 + -8 = 0
0 + 15c = 21 + -8
15c = 21 + -8

Combine like terms: 21 + -8 = 13
15c = 13

Divide each side by '15'.
c = 0.8666666667

Simplifying
c = 0.8666666667

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