x+3=8.4

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Solution for x+3=8.4 equation: 


Simplifying
x + 3 = 8.4

Reorder the terms:
3 + x = 8.4

Solving
3 + x = 8.4

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + x = 8.4 + -3

Combine like terms: 3 + -3 = 0
0 + x = 8.4 + -3
x = 8.4 + -3

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

Simplifying
x = 5.4

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