40-4x=13-7x

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Solution for 40-4x=13-7x equation:


Simplifying
40 + -4x = 13 + -7x

Solving
40 + -4x = 13 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
40 + -4x + 7x = 13 + -7x + 7x

Combine like terms: -4x + 7x = 3x
40 + 3x = 13 + -7x + 7x

Combine like terms: -7x + 7x = 0
40 + 3x = 13 + 0
40 + 3x = 13

Add '-40' to each side of the equation.
40 + -40 + 3x = 13 + -40

Combine like terms: 40 + -40 = 0
0 + 3x = 13 + -40
3x = 13 + -40

Combine like terms: 13 + -40 = -27
3x = -27

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

Simplifying
x = -9

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