5r+15=4r-8

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Solution for 5r+15=4r-8 equation:


Simplifying
5r + 15 = 4r + -8

Reorder the terms:
15 + 5r = 4r + -8

Reorder the terms:
15 + 5r = -8 + 4r

Solving
15 + 5r = -8 + 4r

Solving for variable 'r'.

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

Add '-4r' to each side of the equation.
15 + 5r + -4r = -8 + 4r + -4r

Combine like terms: 5r + -4r = 1r
15 + 1r = -8 + 4r + -4r

Combine like terms: 4r + -4r = 0
15 + 1r = -8 + 0
15 + 1r = -8

Add '-15' to each side of the equation.
15 + -15 + 1r = -8 + -15

Combine like terms: 15 + -15 = 0
0 + 1r = -8 + -15
1r = -8 + -15

Combine like terms: -8 + -15 = -23
1r = -23

Divide each side by '1'.
r = -23

Simplifying
r = -23

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