20x+4-x=90

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Solution for 20x+4-x=90 equation:


Simplifying
20x + 4 + -1x = 90

Reorder the terms:
4 + 20x + -1x = 90

Combine like terms: 20x + -1x = 19x
4 + 19x = 90

Solving
4 + 19x = 90

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + 19x = 90 + -4

Combine like terms: 4 + -4 = 0
0 + 19x = 90 + -4
19x = 90 + -4

Combine like terms: 90 + -4 = 86
19x = 86

Divide each side by '19'.
x = 4.526315789

Simplifying
x = 4.526315789

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