3x-0.4(5-2x)=56

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Solution for 3x-0.4(5-2x)=56 equation:


Simplifying
3x + -0.4(5 + -2x) = 56
3x + (5 * -0.4 + -2x * -0.4) = 56
3x + (-2 + 0.8x) = 56

Reorder the terms:
-2 + 3x + 0.8x = 56

Combine like terms: 3x + 0.8x = 3.8x
-2 + 3.8x = 56

Solving
-2 + 3.8x = 56

Solving for variable 'x'.

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

Add '2' to each side of the equation.
-2 + 2 + 3.8x = 56 + 2

Combine like terms: -2 + 2 = 0
0 + 3.8x = 56 + 2
3.8x = 56 + 2

Combine like terms: 56 + 2 = 58
3.8x = 58

Divide each side by '3.8'.
x = 15.26315789

Simplifying
x = 15.26315789

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