21x-4=11x-15

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Solution for 21x-4=11x-15 equation:


Simplifying
21x + -4 = 11x + -15

Reorder the terms:
-4 + 21x = 11x + -15

Reorder the terms:
-4 + 21x = -15 + 11x

Solving
-4 + 21x = -15 + 11x

Solving for variable 'x'.

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

Add '-11x' to each side of the equation.
-4 + 21x + -11x = -15 + 11x + -11x

Combine like terms: 21x + -11x = 10x
-4 + 10x = -15 + 11x + -11x

Combine like terms: 11x + -11x = 0
-4 + 10x = -15 + 0
-4 + 10x = -15

Add '4' to each side of the equation.
-4 + 4 + 10x = -15 + 4

Combine like terms: -4 + 4 = 0
0 + 10x = -15 + 4
10x = -15 + 4

Combine like terms: -15 + 4 = -11
10x = -11

Divide each side by '10'.
x = -1.1

Simplifying
x = -1.1

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