1.8+x=4.2

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Solution for 1.8+x=4.2 equation: 


Simplifying
1.8 + x = 4.2

Solving
1.8 + x = 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 + x = 4.2 + -1.8

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

Combine like terms: 4.2 + -1.8 = 2.4
x = 2.4

Simplifying
x = 2.4

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