x+8+x-15=9x+40

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


Simplifying
x + 8 + x + -15 = 9x + 40

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

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

Combine like terms: x + x = 2x
-7 + 2x = 9x + 40

Reorder the terms:
-7 + 2x = 40 + 9x

Solving
-7 + 2x = 40 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
-7 + 2x + -9x = 40 + 9x + -9x

Combine like terms: 2x + -9x = -7x
-7 + -7x = 40 + 9x + -9x

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

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

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

Combine like terms: 40 + 7 = 47
-7x = 47

Divide each side by '-7'.
x = -6.714285714

Simplifying
x = -6.714285714

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