X-8.4=-5.4

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Solution for X-8.4=-5.4 equation: 


Simplifying
X + -8.4 = -5.4

Reorder the terms:
-8.4 + X = -5.4

Solving
-8.4 + X = -5.4

Solving for variable 'X'.

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

Add '8.4' to each side of the equation.
-8.4 + 8.4 + X = -5.4 + 8.4

Combine like terms: -8.4 + 8.4 = 0.0
0.0 + X = -5.4 + 8.4
X = -5.4 + 8.4

Combine like terms: -5.4 + 8.4 = 3
X = 3

Simplifying
X = 3

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