4r+8=7.2+5r

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Solution for 4r+8=7.2+5r equation:


Simplifying
4r + 8 = 7.2 + 5r

Reorder the terms:
8 + 4r = 7.2 + 5r

Solving
8 + 4r = 7.2 + 5r

Solving for variable 'r'.

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

Add '-5r' to each side of the equation.
8 + 4r + -5r = 7.2 + 5r + -5r

Combine like terms: 4r + -5r = -1r
8 + -1r = 7.2 + 5r + -5r

Combine like terms: 5r + -5r = 0
8 + -1r = 7.2 + 0
8 + -1r = 7.2

Add '-8' to each side of the equation.
8 + -8 + -1r = 7.2 + -8

Combine like terms: 8 + -8 = 0
0 + -1r = 7.2 + -8
-1r = 7.2 + -8

Combine like terms: 7.2 + -8 = -0.8
-1r = -0.8

Divide each side by '-1'.
r = 0.8

Simplifying
r = 0.8

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