X+.4=.7

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Solution for X+.4=.7 equation: 


Simplifying
X + 0.4 = 0.7

Reorder the terms:
0.4 + X = 0.7

Solving
0.4 + X = 0.7

Solving for variable 'X'.

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

Add '-0.4' to each side of the equation.
0.4 + -0.4 + X = 0.7 + -0.4

Combine like terms: 0.4 + -0.4 = 0.0
0.0 + X = 0.7 + -0.4
X = 0.7 + -0.4

Combine like terms: 0.7 + -0.4 = 0.3
X = 0.3

Simplifying
X = 0.3

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