0.4x+3.2=3x-7

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Solution for 0.4x+3.2=3x-7 equation:


Simplifying
0.4x + 3.2 = 3x + -7

Reorder the terms:
3.2 + 0.4x = 3x + -7

Reorder the terms:
3.2 + 0.4x = -7 + 3x

Solving
3.2 + 0.4x = -7 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
3.2 + 0.4x + -3x = -7 + 3x + -3x

Combine like terms: 0.4x + -3x = -2.6x
3.2 + -2.6x = -7 + 3x + -3x

Combine like terms: 3x + -3x = 0
3.2 + -2.6x = -7 + 0
3.2 + -2.6x = -7

Add '-3.2' to each side of the equation.
3.2 + -3.2 + -2.6x = -7 + -3.2

Combine like terms: 3.2 + -3.2 = 0.0
0.0 + -2.6x = -7 + -3.2
-2.6x = -7 + -3.2

Combine like terms: -7 + -3.2 = -10.2
-2.6x = -10.2

Divide each side by '-2.6'.
x = 3.923076923

Simplifying
x = 3.923076923

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