10x+9=20-x

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Solution for 10x+9=20-x equation:


Simplifying
10x + 9 = 20 + -1x

Reorder the terms:
9 + 10x = 20 + -1x

Solving
9 + 10x = 20 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
9 + 10x + x = 20 + -1x + x

Combine like terms: 10x + x = 11x
9 + 11x = 20 + -1x + x

Combine like terms: -1x + x = 0
9 + 11x = 20 + 0
9 + 11x = 20

Add '-9' to each side of the equation.
9 + -9 + 11x = 20 + -9

Combine like terms: 9 + -9 = 0
0 + 11x = 20 + -9
11x = 20 + -9

Combine like terms: 20 + -9 = 11
11x = 11

Divide each side by '11'.
x = 1

Simplifying
x = 1

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