9r-8+4r=7r+16

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Solution for 9r-8+4r=7r+16 equation:


Simplifying
9r + -8 + 4r = 7r + 16

Reorder the terms:
-8 + 9r + 4r = 7r + 16

Combine like terms: 9r + 4r = 13r
-8 + 13r = 7r + 16

Reorder the terms:
-8 + 13r = 16 + 7r

Solving
-8 + 13r = 16 + 7r

Solving for variable 'r'.

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

Add '-7r' to each side of the equation.
-8 + 13r + -7r = 16 + 7r + -7r

Combine like terms: 13r + -7r = 6r
-8 + 6r = 16 + 7r + -7r

Combine like terms: 7r + -7r = 0
-8 + 6r = 16 + 0
-8 + 6r = 16

Add '8' to each side of the equation.
-8 + 8 + 6r = 16 + 8

Combine like terms: -8 + 8 = 0
0 + 6r = 16 + 8
6r = 16 + 8

Combine like terms: 16 + 8 = 24
6r = 24

Divide each side by '6'.
r = 4

Simplifying
r = 4

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