19-x=100-10x

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Solution for 19-x=100-10x equation:


Simplifying
19 + -1x = 100 + -10x

Solving
19 + -1x = 100 + -10x

Solving for variable 'x'.

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

Add '10x' to each side of the equation.
19 + -1x + 10x = 100 + -10x + 10x

Combine like terms: -1x + 10x = 9x
19 + 9x = 100 + -10x + 10x

Combine like terms: -10x + 10x = 0
19 + 9x = 100 + 0
19 + 9x = 100

Add '-19' to each side of the equation.
19 + -19 + 9x = 100 + -19

Combine like terms: 19 + -19 = 0
0 + 9x = 100 + -19
9x = 100 + -19

Combine like terms: 100 + -19 = 81
9x = 81

Divide each side by '9'.
x = 9

Simplifying
x = 9

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