2x+9=40

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Solution for 2x+9=40 equation: 


Simplifying
2x + 9 = 40

Reorder the terms:
9 + 2x = 40

Solving
9 + 2x = 40

Solving for variable 'x'.

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

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

Combine like terms: 9 + -9 = 0
0 + 2x = 40 + -9
2x = 40 + -9

Combine like terms: 40 + -9 = 31
2x = 31

Divide each side by '2'.
x = 15.5

Simplifying
x = 15.5

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