r+3.4=-7.8

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Solution for r+3.4=-7.8 equation: 


Simplifying
r + 3.4 = -7.8

Reorder the terms:
3.4 + r = -7.8

Solving
3.4 + r = -7.8

Solving for variable 'r'.

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

Add '-3.4' to each side of the equation.
3.4 + -3.4 + r = -7.8 + -3.4

Combine like terms: 3.4 + -3.4 = 0.0
0.0 + r = -7.8 + -3.4
r = -7.8 + -3.4

Combine like terms: -7.8 + -3.4 = -11.2
r = -11.2

Simplifying
r = -11.2

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