8x-21+5x=-15

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Solution for 8x-21+5x=-15 equation:


Simplifying
8x + -21 + 5x = -15

Reorder the terms:
-21 + 8x + 5x = -15

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

Solving
-21 + 13x = -15

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + 13x = -15 + 21

Combine like terms: -21 + 21 = 0
0 + 13x = -15 + 21
13x = -15 + 21

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

Divide each side by '13'.
x = 0.4615384615

Simplifying
x = 0.4615384615

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