x+8+x+5=9x+40

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Solution for x+8+x+5=9x+40 equation:


Simplifying
x + 8 + x + 5 = 9x + 40

Reorder the terms:
8 + 5 + x + x = 9x + 40

Combine like terms: 8 + 5 = 13
13 + x + x = 9x + 40

Combine like terms: x + x = 2x
13 + 2x = 9x + 40

Reorder the terms:
13 + 2x = 40 + 9x

Solving
13 + 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.
13 + 2x + -9x = 40 + 9x + -9x

Combine like terms: 2x + -9x = -7x
13 + -7x = 40 + 9x + -9x

Combine like terms: 9x + -9x = 0
13 + -7x = 40 + 0
13 + -7x = 40

Add '-13' to each side of the equation.
13 + -13 + -7x = 40 + -13

Combine like terms: 13 + -13 = 0
0 + -7x = 40 + -13
-7x = 40 + -13

Combine like terms: 40 + -13 = 27
-7x = 27

Divide each side by '-7'.
x = -3.857142857

Simplifying
x = -3.857142857

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