40=2(7)+2(x+2)

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Solution for 40=2(7)+2(x+2) equation:


Simplifying
40 = 2(7) + 2(x + 2)

Multiply 2 * 7
40 = 14 + 2(x + 2)

Reorder the terms:
40 = 14 + 2(2 + x)
40 = 14 + (2 * 2 + x * 2)
40 = 14 + (4 + 2x)

Combine like terms: 14 + 4 = 18
40 = 18 + 2x

Solving
40 = 18 + 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 = 18 + 2x + -2x

Combine like terms: 2x + -2x = 0
40 + -2x = 18 + 0
40 + -2x = 18

Add '-40' to each side of the equation.
40 + -40 + -2x = 18 + -40

Combine like terms: 40 + -40 = 0
0 + -2x = 18 + -40
-2x = 18 + -40

Combine like terms: 18 + -40 = -22
-2x = -22

Divide each side by '-2'.
x = 11

Simplifying
x = 11

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