40=30-2*x-2*3

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Solution for 40=30-2*x-2*3 equation:


Simplifying
40 = 30 + -2x + -2 * 3

Multiply -2 * 3
40 = 30 + -2x + -6

Reorder the terms:
40 = 30 + -6 + -2x

Combine like terms: 30 + -6 = 24
40 = 24 + -2x

Solving
40 = 24 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
40 + 2x = 24 + -2x + 2x

Combine like terms: -2x + 2x = 0
40 + 2x = 24 + 0
40 + 2x = 24

Add '-40' to each side of the equation.
40 + -40 + 2x = 24 + -40

Combine like terms: 40 + -40 = 0
0 + 2x = 24 + -40
2x = 24 + -40

Combine like terms: 24 + -40 = -16
2x = -16

Divide each side by '2'.
x = -8

Simplifying
x = -8

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