(x-(28-x))*10=140

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Solution for (x-(28-x))*10=140 equation:


Simplifying
(x + -1(28 + -1x)) * 10 = 140
(x + (28 * -1 + -1x * -1)) * 10 = 140
(x + (-28 + 1x)) * 10 = 140

Reorder the terms:
(-28 + x + 1x) * 10 = 140

Combine like terms: x + 1x = 2x
(-28 + 2x) * 10 = 140

Reorder the terms for easier multiplication:
10(-28 + 2x) = 140
(-28 * 10 + 2x * 10) = 140
(-280 + 20x) = 140

Solving
-280 + 20x = 140

Solving for variable 'x'.

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

Add '280' to each side of the equation.
-280 + 280 + 20x = 140 + 280

Combine like terms: -280 + 280 = 0
0 + 20x = 140 + 280
20x = 140 + 280

Combine like terms: 140 + 280 = 420
20x = 420

Divide each side by '20'.
x = 21

Simplifying
x = 21

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