21-18x=2x-3

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Solution for 21-18x=2x-3 equation:


Simplifying
21 + -18x = 2x + -3

Reorder the terms:
21 + -18x = -3 + 2x

Solving
21 + -18x = -3 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
21 + -18x + -2x = -3 + 2x + -2x

Combine like terms: -18x + -2x = -20x
21 + -20x = -3 + 2x + -2x

Combine like terms: 2x + -2x = 0
21 + -20x = -3 + 0
21 + -20x = -3

Add '-21' to each side of the equation.
21 + -21 + -20x = -3 + -21

Combine like terms: 21 + -21 = 0
0 + -20x = -3 + -21
-20x = -3 + -21

Combine like terms: -3 + -21 = -24
-20x = -24

Divide each side by '-20'.
x = 1.2

Simplifying
x = 1.2

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