15x+40=8x+9

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Solution for 15x+40=8x+9 equation:


Simplifying
15x + 40 = 8x + 9

Reorder the terms:
40 + 15x = 8x + 9

Reorder the terms:
40 + 15x = 9 + 8x

Solving
40 + 15x = 9 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
40 + 15x + -8x = 9 + 8x + -8x

Combine like terms: 15x + -8x = 7x
40 + 7x = 9 + 8x + -8x

Combine like terms: 8x + -8x = 0
40 + 7x = 9 + 0
40 + 7x = 9

Add '-40' to each side of the equation.
40 + -40 + 7x = 9 + -40

Combine like terms: 40 + -40 = 0
0 + 7x = 9 + -40
7x = 9 + -40

Combine like terms: 9 + -40 = -31
7x = -31

Divide each side by '7'.
x = -4.428571429

Simplifying
x = -4.428571429

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