15x+10=20x-9

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Solution for 15x+10=20x-9 equation:


Simplifying
15x + 10 = 20x + -9

Reorder the terms:
10 + 15x = 20x + -9

Reorder the terms:
10 + 15x = -9 + 20x

Solving
10 + 15x = -9 + 20x

Solving for variable 'x'.

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

Add '-20x' to each side of the equation.
10 + 15x + -20x = -9 + 20x + -20x

Combine like terms: 15x + -20x = -5x
10 + -5x = -9 + 20x + -20x

Combine like terms: 20x + -20x = 0
10 + -5x = -9 + 0
10 + -5x = -9

Add '-10' to each side of the equation.
10 + -10 + -5x = -9 + -10

Combine like terms: 10 + -10 = 0
0 + -5x = -9 + -10
-5x = -9 + -10

Combine like terms: -9 + -10 = -19
-5x = -19

Divide each side by '-5'.
x = 3.8

Simplifying
x = 3.8

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