10.5x+7.2-0.3x=3.9

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Solution for 10.5x+7.2-0.3x=3.9 equation:


Simplifying
10.5x + 7.2 + -0.3x = 3.9

Reorder the terms:
7.2 + 10.5x + -0.3x = 3.9

Combine like terms: 10.5x + -0.3x = 10.2x
7.2 + 10.2x = 3.9

Solving
7.2 + 10.2x = 3.9

Solving for variable 'x'.

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

Add '-7.2' to each side of the equation.
7.2 + -7.2 + 10.2x = 3.9 + -7.2

Combine like terms: 7.2 + -7.2 = 0.0
0.0 + 10.2x = 3.9 + -7.2
10.2x = 3.9 + -7.2

Combine like terms: 3.9 + -7.2 = -3.3
10.2x = -3.3

Divide each side by '10.2'.
x = -0.3235294118

Simplifying
x = -0.3235294118

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