8x+9=13x-4

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Solution for 8x+9=13x-4 equation:


Simplifying
8x + 9 = 13x + -4

Reorder the terms:
9 + 8x = 13x + -4

Reorder the terms:
9 + 8x = -4 + 13x

Solving
9 + 8x = -4 + 13x

Solving for variable 'x'.

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

Add '-13x' to each side of the equation.
9 + 8x + -13x = -4 + 13x + -13x

Combine like terms: 8x + -13x = -5x
9 + -5x = -4 + 13x + -13x

Combine like terms: 13x + -13x = 0
9 + -5x = -4 + 0
9 + -5x = -4

Add '-9' to each side of the equation.
9 + -9 + -5x = -4 + -9

Combine like terms: 9 + -9 = 0
0 + -5x = -4 + -9
-5x = -4 + -9

Combine like terms: -4 + -9 = -13
-5x = -13

Divide each side by '-5'.
x = 2.6

Simplifying
x = 2.6

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