3(9+7x)=216

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Solution for 3(9+7x)=216 equation: 


Simplifying
3(9 + 7x) = 216
(9 * 3 + 7x * 3) = 216
(27 + 21x) = 216

Solving
27 + 21x = 216

Solving for variable 'x'.

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

Add '-27' to each side of the equation.
27 + -27 + 21x = 216 + -27

Combine like terms: 27 + -27 = 0
0 + 21x = 216 + -27
21x = 216 + -27

Combine like terms: 216 + -27 = 189
21x = 189

Divide each side by '21'.
x = 9

Simplifying
x = 9

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