3x-4.2=7.2

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Solution for 3x-4.2=7.2 equation: 


Simplifying
3x + -4.2 = 7.2

Reorder the terms:
-4.2 + 3x = 7.2

Solving
-4.2 + 3x = 7.2

Solving for variable 'x'.

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

Add '4.2' to each side of the equation.
-4.2 + 4.2 + 3x = 7.2 + 4.2

Combine like terms: -4.2 + 4.2 = 0.0
0.0 + 3x = 7.2 + 4.2
3x = 7.2 + 4.2

Combine like terms: 7.2 + 4.2 = 11.4
3x = 11.4

Divide each side by '3'.
x = 3.8

Simplifying
x = 3.8

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