42=.5(2x-5)

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Solution for 42=.5(2x-5) equation:


Simplifying
42 = 0.5(2x + -5)

Reorder the terms:
42 = 0.5(-5 + 2x)
42 = (-5 * 0.5 + 2x * 0.5)
42 = (-2.5 + 1x)

Solving
42 = -2.5 + 1x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
42 + -1x = -2.5 + 1x + -1x

Combine like terms: 1x + -1x = 0
42 + -1x = -2.5 + 0
42 + -1x = -2.5

Add '-42' to each side of the equation.
42 + -42 + -1x = -2.5 + -42

Combine like terms: 42 + -42 = 0
0 + -1x = -2.5 + -42
-1x = -2.5 + -42

Combine like terms: -2.5 + -42 = -44.5
-1x = -44.5

Divide each side by '-1'.
x = 44.5

Simplifying
x = 44.5

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