=0.4(2-x)-(x+3)

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


Simplifying
0 = 0.4(2 + -1x) + -1(x + 3)
0 = (2 * 0.4 + -1x * 0.4) + -1(x + 3)
0 = (0.8 + -0.4x) + -1(x + 3)

Reorder the terms:
0 = 0.8 + -0.4x + -1(3 + x)
0 = 0.8 + -0.4x + (3 * -1 + x * -1)
0 = 0.8 + -0.4x + (-3 + -1x)

Reorder the terms:
0 = 0.8 + -3 + -0.4x + -1x

Combine like terms: 0.8 + -3 = -2.2
0 = -2.2 + -0.4x + -1x

Combine like terms: -0.4x + -1x = -1.4x
0 = -2.2 + -1.4x

Solving
0 = -2.2 + -1.4x

Solving for variable 'x'.

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

Add '1.4x' to each side of the equation.
0 + 1.4x = -2.2 + -1.4x + 1.4x
Remove the zero:
1.4x = -2.2 + -1.4x + 1.4x

Combine like terms: -1.4x + 1.4x = 0.0
1.4x = -2.2 + 0.0
1.4x = -2.2

Divide each side by '1.4'.
x = -1.571428571

Simplifying
x = -1.571428571

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