48-x=20x+90

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Solution for 48-x=20x+90 equation:


Simplifying
48 + -1x = 20x + 90

Reorder the terms:
48 + -1x = 90 + 20x

Solving
48 + -1x = 90 + 20x

Solving for variable 'x'.

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

Add '-20x' to each side of the equation.
48 + -1x + -20x = 90 + 20x + -20x

Combine like terms: -1x + -20x = -21x
48 + -21x = 90 + 20x + -20x

Combine like terms: 20x + -20x = 0
48 + -21x = 90 + 0
48 + -21x = 90

Add '-48' to each side of the equation.
48 + -48 + -21x = 90 + -48

Combine like terms: 48 + -48 = 0
0 + -21x = 90 + -48
-21x = 90 + -48

Combine like terms: 90 + -48 = 42
-21x = 42

Divide each side by '-21'.
x = -2

Simplifying
x = -2

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