.4x+1.2=x-3

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Solution for .4x+1.2=x-3 equation:


Simplifying
0.4x + 1.2 = x + -3

Reorder the terms:
1.2 + 0.4x = x + -3

Reorder the terms:
1.2 + 0.4x = -3 + x

Solving
1.2 + 0.4x = -3 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
1.2 + 0.4x + -1x = -3 + x + -1x

Combine like terms: 0.4x + -1x = -0.6x
1.2 + -0.6x = -3 + x + -1x

Combine like terms: x + -1x = 0
1.2 + -0.6x = -3 + 0
1.2 + -0.6x = -3

Add '-1.2' to each side of the equation.
1.2 + -1.2 + -0.6x = -3 + -1.2

Combine like terms: 1.2 + -1.2 = 0.0
0.0 + -0.6x = -3 + -1.2
-0.6x = -3 + -1.2

Combine like terms: -3 + -1.2 = -4.2
-0.6x = -4.2

Divide each side by '-0.6'.
x = 7

Simplifying
x = 7

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