10x+9+11x=180

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Solution for 10x+9+11x=180 equation:


Simplifying
10x + 9 + 11x = 180

Reorder the terms:
9 + 10x + 11x = 180

Combine like terms: 10x + 11x = 21x
9 + 21x = 180

Solving
9 + 21x = 180

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 21x = 180 + -9

Combine like terms: 9 + -9 = 0
0 + 21x = 180 + -9
21x = 180 + -9

Combine like terms: 180 + -9 = 171
21x = 171

Divide each side by '21'.
x = 8.142857143

Simplifying
x = 8.142857143

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