.4x-.9(9-3x)=-.6(x-5)

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Solution for .4x-.9(9-3x)=-.6(x-5) equation:


Simplifying
0.4x + -0.9(9 + -3x) = -0.6(x + -5)
0.4x + (9 * -0.9 + -3x * -0.9) = -0.6(x + -5)
0.4x + (-8.1 + 2.7x) = -0.6(x + -5)

Reorder the terms:
-8.1 + 0.4x + 2.7x = -0.6(x + -5)

Combine like terms: 0.4x + 2.7x = 3.1x
-8.1 + 3.1x = -0.6(x + -5)

Reorder the terms:
-8.1 + 3.1x = -0.6(-5 + x)
-8.1 + 3.1x = (-5 * -0.6 + x * -0.6)
-8.1 + 3.1x = (3 + -0.6x)

Solving
-8.1 + 3.1x = 3 + -0.6x

Solving for variable 'x'.

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

Add '0.6x' to each side of the equation.
-8.1 + 3.1x + 0.6x = 3 + -0.6x + 0.6x

Combine like terms: 3.1x + 0.6x = 3.7x
-8.1 + 3.7x = 3 + -0.6x + 0.6x

Combine like terms: -0.6x + 0.6x = 0.0
-8.1 + 3.7x = 3 + 0.0
-8.1 + 3.7x = 3

Add '8.1' to each side of the equation.
-8.1 + 8.1 + 3.7x = 3 + 8.1

Combine like terms: -8.1 + 8.1 = 0.0
0.0 + 3.7x = 3 + 8.1
3.7x = 3 + 8.1

Combine like terms: 3 + 8.1 = 11.1
3.7x = 11.1

Divide each side by '3.7'.
x = 3

Simplifying
x = 3

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