8+2r-4=9r+16-5r

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Solution for 8+2r-4=9r+16-5r equation:


Simplifying
8 + 2r + -4 = 9r + 16 + -5r

Reorder the terms:
8 + -4 + 2r = 9r + 16 + -5r

Combine like terms: 8 + -4 = 4
4 + 2r = 9r + 16 + -5r

Reorder the terms:
4 + 2r = 16 + 9r + -5r

Combine like terms: 9r + -5r = 4r
4 + 2r = 16 + 4r

Solving
4 + 2r = 16 + 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.
4 + 2r + -4r = 16 + 4r + -4r

Combine like terms: 2r + -4r = -2r
4 + -2r = 16 + 4r + -4r

Combine like terms: 4r + -4r = 0
4 + -2r = 16 + 0
4 + -2r = 16

Add '-4' to each side of the equation.
4 + -4 + -2r = 16 + -4

Combine like terms: 4 + -4 = 0
0 + -2r = 16 + -4
-2r = 16 + -4

Combine like terms: 16 + -4 = 12
-2r = 12

Divide each side by '-2'.
r = -6

Simplifying
r = -6

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