40=28-2(x-4)

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Solution for 40=28-2(x-4) equation:


Simplifying
40 = 28 + -2(x + -4)

Reorder the terms:
40 = 28 + -2(-4 + x)
40 = 28 + (-4 * -2 + x * -2)
40 = 28 + (8 + -2x)

Combine like terms: 28 + 8 = 36
40 = 36 + -2x

Solving
40 = 36 + -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 = 36 + -2x + 2x

Combine like terms: -2x + 2x = 0
40 + 2x = 36 + 0
40 + 2x = 36

Add '-40' to each side of the equation.
40 + -40 + 2x = 36 + -40

Combine like terms: 40 + -40 = 0
0 + 2x = 36 + -40
2x = 36 + -40

Combine like terms: 36 + -40 = -4
2x = -4

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

Simplifying
x = -2

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