(9x-15)+(9x-8)=121

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Solution for (9x-15)+(9x-8)=121 equation:


Simplifying
(9x + -15) + (9x + -8) = 121

Reorder the terms:
(-15 + 9x) + (9x + -8) = 121

Remove parenthesis around (-15 + 9x)
-15 + 9x + (9x + -8) = 121

Reorder the terms:
-15 + 9x + (-8 + 9x) = 121

Remove parenthesis around (-8 + 9x)
-15 + 9x + -8 + 9x = 121

Reorder the terms:
-15 + -8 + 9x + 9x = 121

Combine like terms: -15 + -8 = -23
-23 + 9x + 9x = 121

Combine like terms: 9x + 9x = 18x
-23 + 18x = 121

Solving
-23 + 18x = 121

Solving for variable 'x'.

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

Add '23' to each side of the equation.
-23 + 23 + 18x = 121 + 23

Combine like terms: -23 + 23 = 0
0 + 18x = 121 + 23
18x = 121 + 23

Combine like terms: 121 + 23 = 144
18x = 144

Divide each side by '18'.
x = 8

Simplifying
x = 8

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