81+72=9(9+x)

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Solution for 81+72=9(9+x) equation:


Simplifying
81 + 72 = 9(9 + x)

Combine like terms: 81 + 72 = 153
153 = 9(9 + x)
153 = (9 * 9 + x * 9)
153 = (81 + 9x)

Solving
153 = 81 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
153 + -9x = 81 + 9x + -9x

Combine like terms: 9x + -9x = 0
153 + -9x = 81 + 0
153 + -9x = 81

Add '-153' to each side of the equation.
153 + -153 + -9x = 81 + -153

Combine like terms: 153 + -153 = 0
0 + -9x = 81 + -153
-9x = 81 + -153

Combine like terms: 81 + -153 = -72
-9x = -72

Divide each side by '-9'.
x = 8

Simplifying
x = 8

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