2x-1.8=4.2

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Solution for 2x-1.8=4.2 equation: 


Simplifying
2x + -1.8 = 4.2

Reorder the terms:
-1.8 + 2x = 4.2

Solving
-1.8 + 2x = 4.2

Solving for variable 'x'.

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

Add '1.8' to each side of the equation.
-1.8 + 1.8 + 2x = 4.2 + 1.8

Combine like terms: -1.8 + 1.8 = 0.0
0.0 + 2x = 4.2 + 1.8
2x = 4.2 + 1.8

Combine like terms: 4.2 + 1.8 = 6
2x = 6

Divide each side by '2'.
x = 3

Simplifying
x = 3

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