100=2(x+40)+2x

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Solution for 100=2(x+40)+2x equation:


Simplifying
100 = 2(x + 40) + 2x

Reorder the terms:
100 = 2(40 + x) + 2x
100 = (40 * 2 + x * 2) + 2x
100 = (80 + 2x) + 2x

Combine like terms: 2x + 2x = 4x
100 = 80 + 4x

Solving
100 = 80 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
100 + -4x = 80 + 4x + -4x

Combine like terms: 4x + -4x = 0
100 + -4x = 80 + 0
100 + -4x = 80

Add '-100' to each side of the equation.
100 + -100 + -4x = 80 + -100

Combine like terms: 100 + -100 = 0
0 + -4x = 80 + -100
-4x = 80 + -100

Combine like terms: 80 + -100 = -20
-4x = -20

Divide each side by '-4'.
x = 5

Simplifying
x = 5

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