3(r+1.8)-5r=7.1

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Solution for 3(r+1.8)-5r=7.1 equation: 


Simplifying
3(r + 1.8) + -5r = 7.1

Reorder the terms:
3(1.8 + r) + -5r = 7.1
(1.8 * 3 + r * 3) + -5r = 7.1
(5.4 + 3r) + -5r = 7.1

Combine like terms: 3r + -5r = -2r
5.4 + -2r = 7.1

Solving
5.4 + -2r = 7.1

Solving for variable 'r'.

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

Add '-5.4' to each side of the equation.
5.4 + -5.4 + -2r = 7.1 + -5.4

Combine like terms: 5.4 + -5.4 = 0.0
0.0 + -2r = 7.1 + -5.4
-2r = 7.1 + -5.4

Combine like terms: 7.1 + -5.4 = 1.7
-2r = 1.7

Divide each side by '-2'.
r = -0.85

Simplifying
r = -0.85

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