15x-21=5x-1

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Solution for 15x-21=5x-1 equation:


Simplifying
15x + -21 = 5x + -1

Reorder the terms:
-21 + 15x = 5x + -1

Reorder the terms:
-21 + 15x = -1 + 5x

Solving
-21 + 15x = -1 + 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.
-21 + 15x + -5x = -1 + 5x + -5x

Combine like terms: 15x + -5x = 10x
-21 + 10x = -1 + 5x + -5x

Combine like terms: 5x + -5x = 0
-21 + 10x = -1 + 0
-21 + 10x = -1

Add '21' to each side of the equation.
-21 + 21 + 10x = -1 + 21

Combine like terms: -21 + 21 = 0
0 + 10x = -1 + 21
10x = -1 + 21

Combine like terms: -1 + 21 = 20
10x = 20

Divide each side by '10'.
x = 2

Simplifying
x = 2

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