40=9x+13

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Solution for 40=9x+13 equation:


Simplifying
40 = 9x + 13

Reorder the terms:
40 = 13 + 9x

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

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

Add '-40' to each side of the equation.
40 + -40 + -9x = 13 + -40

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

Combine like terms: 13 + -40 = -27
-9x = -27

Divide each side by '-9'.
x = 3

Simplifying
x = 3

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