10x-9=40x+15

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Solution for 10x-9=40x+15 equation:


Simplifying
10x + -9 = 40x + 15

Reorder the terms:
-9 + 10x = 40x + 15

Reorder the terms:
-9 + 10x = 15 + 40x

Solving
-9 + 10x = 15 + 40x

Solving for variable 'x'.

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

Add '-40x' to each side of the equation.
-9 + 10x + -40x = 15 + 40x + -40x

Combine like terms: 10x + -40x = -30x
-9 + -30x = 15 + 40x + -40x

Combine like terms: 40x + -40x = 0
-9 + -30x = 15 + 0
-9 + -30x = 15

Add '9' to each side of the equation.
-9 + 9 + -30x = 15 + 9

Combine like terms: -9 + 9 = 0
0 + -30x = 15 + 9
-30x = 15 + 9

Combine like terms: 15 + 9 = 24
-30x = 24

Divide each side by '-30'.
x = -0.8

Simplifying
x = -0.8

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