5=13+15x-21

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Solution for 5=13+15x-21 equation:


Simplifying
5 = 13 + 15x + -21

Reorder the terms:
5 = 13 + -21 + 15x

Combine like terms: 13 + -21 = -8
5 = -8 + 15x

Solving
5 = -8 + 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.
5 + -15x = -8 + 15x + -15x

Combine like terms: 15x + -15x = 0
5 + -15x = -8 + 0
5 + -15x = -8

Add '-5' to each side of the equation.
5 + -5 + -15x = -8 + -5

Combine like terms: 5 + -5 = 0
0 + -15x = -8 + -5
-15x = -8 + -5

Combine like terms: -8 + -5 = -13
-15x = -13

Divide each side by '-15'.
x = 0.8666666667

Simplifying
x = 0.8666666667

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