X+3.9=7.4

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Solution for X+3.9=7.4 equation: 


Simplifying
X + 3.9 = 7.4

Reorder the terms:
3.9 + X = 7.4

Solving
3.9 + X = 7.4

Solving for variable 'X'.

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

Add '-3.9' to each side of the equation.
3.9 + -3.9 + X = 7.4 + -3.9

Combine like terms: 3.9 + -3.9 = 0.0
0.0 + X = 7.4 + -3.9
X = 7.4 + -3.9

Combine like terms: 7.4 + -3.9 = 3.5
X = 3.5

Simplifying
X = 3.5

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