900=10x+(100-x)

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Solution for 900=10x+(100-x) equation:


Simplifying
900 = 10x + (100 + -1x)

Remove parenthesis around (100 + -1x)
900 = 10x + 100 + -1x

Reorder the terms:
900 = 100 + 10x + -1x

Combine like terms: 10x + -1x = 9x
900 = 100 + 9x

Solving
900 = 100 + 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.
900 + -9x = 100 + 9x + -9x

Combine like terms: 9x + -9x = 0
900 + -9x = 100 + 0
900 + -9x = 100

Add '-900' to each side of the equation.
900 + -900 + -9x = 100 + -900

Combine like terms: 900 + -900 = 0
0 + -9x = 100 + -900
-9x = 100 + -900

Combine like terms: 100 + -900 = -800
-9x = -800

Divide each side by '-9'.
x = 88.88888889

Simplifying
x = 88.88888889

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