-.5(x-4.2)=6.4

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Solution for -.5(x-4.2)=6.4 equation:


Simplifying
-0.5(x + -4.2) = 6.4

Reorder the terms:
-0.5(-4.2 + x) = 6.4
(-4.2 * -0.5 + x * -0.5) = 6.4
(2.1 + -0.5x) = 6.4

Solving
2.1 + -0.5x = 6.4

Solving for variable 'x'.

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

Add '-2.1' to each side of the equation.
2.1 + -2.1 + -0.5x = 6.4 + -2.1

Combine like terms: 2.1 + -2.1 = 0.0
0.0 + -0.5x = 6.4 + -2.1
-0.5x = 6.4 + -2.1

Combine like terms: 6.4 + -2.1 = 4.3
-0.5x = 4.3

Divide each side by '-0.5'.
x = -8.6

Simplifying
x = -8.6

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