-4r+3.6=7.8

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Solution for -4r+3.6=7.8 equation: 


Simplifying
-4r + 3.6 = 7.8

Reorder the terms:
3.6 + -4r = 7.8

Solving
3.6 + -4r = 7.8

Solving for variable 'r'.

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

Add '-3.6' to each side of the equation.
3.6 + -3.6 + -4r = 7.8 + -3.6

Combine like terms: 3.6 + -3.6 = 0.0
0.0 + -4r = 7.8 + -3.6
-4r = 7.8 + -3.6

Combine like terms: 7.8 + -3.6 = 4.2
-4r = 4.2

Divide each side by '-4'.
r = -1.05

Simplifying
r = -1.05

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