21-15+13x=-11+15x

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Solution for 21-15+13x=-11+15x equation:


Simplifying
21 + -15 + 13x = -11 + 15x

Combine like terms: 21 + -15 = 6
6 + 13x = -11 + 15x

Solving
6 + 13x = -11 + 15x

Solving for variable 'x'.

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

Add '-15x' to each side of the equation.
6 + 13x + -15x = -11 + 15x + -15x

Combine like terms: 13x + -15x = -2x
6 + -2x = -11 + 15x + -15x

Combine like terms: 15x + -15x = 0
6 + -2x = -11 + 0
6 + -2x = -11

Add '-6' to each side of the equation.
6 + -6 + -2x = -11 + -6

Combine like terms: 6 + -6 = 0
0 + -2x = -11 + -6
-2x = -11 + -6

Combine like terms: -11 + -6 = -17
-2x = -17

Divide each side by '-2'.
x = 8.5

Simplifying
x = 8.5

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