0.1x-0.4(9-4x)=-0.8(x-8)

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Solution for 0.1x-0.4(9-4x)=-0.8(x-8) equation:


Simplifying
0.1x + -0.4(9 + -4x) = -0.8(x + -8)
0.1x + (9 * -0.4 + -4x * -0.4) = -0.8(x + -8)
0.1x + (-3.6 + 1.6x) = -0.8(x + -8)

Reorder the terms:
-3.6 + 0.1x + 1.6x = -0.8(x + -8)

Combine like terms: 0.1x + 1.6x = 1.7x
-3.6 + 1.7x = -0.8(x + -8)

Reorder the terms:
-3.6 + 1.7x = -0.8(-8 + x)
-3.6 + 1.7x = (-8 * -0.8 + x * -0.8)
-3.6 + 1.7x = (6.4 + -0.8x)

Solving
-3.6 + 1.7x = 6.4 + -0.8x

Solving for variable 'x'.

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

Add '0.8x' to each side of the equation.
-3.6 + 1.7x + 0.8x = 6.4 + -0.8x + 0.8x

Combine like terms: 1.7x + 0.8x = 2.5x
-3.6 + 2.5x = 6.4 + -0.8x + 0.8x

Combine like terms: -0.8x + 0.8x = 0.0
-3.6 + 2.5x = 6.4 + 0.0
-3.6 + 2.5x = 6.4

Add '3.6' to each side of the equation.
-3.6 + 3.6 + 2.5x = 6.4 + 3.6

Combine like terms: -3.6 + 3.6 = 0.0
0.0 + 2.5x = 6.4 + 3.6
2.5x = 6.4 + 3.6

Combine like terms: 6.4 + 3.6 = 10
2.5x = 10

Divide each side by '2.5'.
x = 4

Simplifying
x = 4

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