4x-3=5x-21

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Solution for 4x-3=5x-21 equation:


Simplifying
4x + -3 = 5x + -21

Reorder the terms:
-3 + 4x = 5x + -21

Reorder the terms:
-3 + 4x = -21 + 5x

Solving
-3 + 4x = -21 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
-3 + 4x + -5x = -21 + 5x + -5x

Combine like terms: 4x + -5x = -1x
-3 + -1x = -21 + 5x + -5x

Combine like terms: 5x + -5x = 0
-3 + -1x = -21 + 0
-3 + -1x = -21

Add '3' to each side of the equation.
-3 + 3 + -1x = -21 + 3

Combine like terms: -3 + 3 = 0
0 + -1x = -21 + 3
-1x = -21 + 3

Combine like terms: -21 + 3 = -18
-1x = -18

Divide each side by '-1'.
x = 18

Simplifying
x = 18

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