.5x+.7(4-3x)=.4x

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Solution for .5x+.7(4-3x)=.4x equation:


Simplifying
0.5x + 0.7(4 + -3x) = 0.4x
0.5x + (4 * 0.7 + -3x * 0.7) = 0.4x
0.5x + (2.8 + -2.1x) = 0.4x

Reorder the terms:
2.8 + 0.5x + -2.1x = 0.4x

Combine like terms: 0.5x + -2.1x = -1.6x
2.8 + -1.6x = 0.4x

Solving
2.8 + -1.6x = 0.4x

Solving for variable 'x'.

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

Add '-0.4x' to each side of the equation.
2.8 + -1.6x + -0.4x = 0.4x + -0.4x

Combine like terms: -1.6x + -0.4x = -2x
2.8 + -2x = 0.4x + -0.4x

Combine like terms: 0.4x + -0.4x = 0.0
2.8 + -2x = 0.0

Add '-2.8' to each side of the equation.
2.8 + -2.8 + -2x = 0.0 + -2.8

Combine like terms: 2.8 + -2.8 = 0.0
0.0 + -2x = 0.0 + -2.8
-2x = 0.0 + -2.8

Combine like terms: 0.0 + -2.8 = -2.8
-2x = -2.8

Divide each side by '-2'.
x = 1.4

Simplifying
x = 1.4

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