X+19+x=90

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Solution for X+19+x=90 equation:


Simplifying
X + 19 + x = 90

Reorder the terms:
19 + X + x = 90

Solving
19 + X + x = 90

Solving for variable 'X'.

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

Add '-19' to each side of the equation.
19 + X + -19 + x = 90 + -19

Reorder the terms:
19 + -19 + X + x = 90 + -19

Combine like terms: 19 + -19 = 0
0 + X + x = 90 + -19
X + x = 90 + -19

Combine like terms: 90 + -19 = 71
X + x = 71

Add '-1x' to each side of the equation.
X + x + -1x = 71 + -1x

Combine like terms: x + -1x = 0
X + 0 = 71 + -1x
X = 71 + -1x

Simplifying
X = 71 + -1x

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