(28-2X)+(20-2X)=240

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Solution for (28-2X)+(20-2X)=240 equation: 


Simplifying
(28 + -2X) + (20 + -2X) = 240

Remove parenthesis around (28 + -2X)
28 + -2X + (20 + -2X) = 240

Remove parenthesis around (20 + -2X)
28 + -2X + 20 + -2X = 240

Reorder the terms:
28 + 20 + -2X + -2X = 240

Combine like terms: 28 + 20 = 48
48 + -2X + -2X = 240

Combine like terms: -2X + -2X = -4X
48 + -4X = 240

Solving
48 + -4X = 240

Solving for variable 'X'.

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

Add '-48' to each side of the equation.
48 + -48 + -4X = 240 + -48

Combine like terms: 48 + -48 = 0
0 + -4X = 240 + -48
-4X = 240 + -48

Combine like terms: 240 + -48 = 192
-4X = 192

Divide each side by '-4'.
X = -48

Simplifying
X = -48

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