-0.4(x+3.2)=0.9(2x+1.2)

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Solution for -0.4(x+3.2)=0.9(2x+1.2) equation:


Simplifying
-0.4(x + 3.2) = 0.9(2x + 1.2)

Reorder the terms:
-0.4(3.2 + x) = 0.9(2x + 1.2)
(3.2 * -0.4 + x * -0.4) = 0.9(2x + 1.2)
(-1.28 + -0.4x) = 0.9(2x + 1.2)

Reorder the terms:
-1.28 + -0.4x = 0.9(1.2 + 2x)
-1.28 + -0.4x = (1.2 * 0.9 + 2x * 0.9)
-1.28 + -0.4x = (1.08 + 1.8x)

Solving
-1.28 + -0.4x = 1.08 + 1.8x

Solving for variable 'x'.

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

Add '-1.8x' to each side of the equation.
-1.28 + -0.4x + -1.8x = 1.08 + 1.8x + -1.8x

Combine like terms: -0.4x + -1.8x = -2.2x
-1.28 + -2.2x = 1.08 + 1.8x + -1.8x

Combine like terms: 1.8x + -1.8x = 0.0
-1.28 + -2.2x = 1.08 + 0.0
-1.28 + -2.2x = 1.08

Add '1.28' to each side of the equation.
-1.28 + 1.28 + -2.2x = 1.08 + 1.28

Combine like terms: -1.28 + 1.28 = 0.00
0.00 + -2.2x = 1.08 + 1.28
-2.2x = 1.08 + 1.28

Combine like terms: 1.08 + 1.28 = 2.36
-2.2x = 2.36

Divide each side by '-2.2'.
x = -1.072727273

Simplifying
x = -1.072727273

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