7r+2r-4=32

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Solution for 7r+2r-4=32 equation: 


Simplifying
7r + 2r + -4 = 32

Reorder the terms:
-4 + 7r + 2r = 32

Combine like terms: 7r + 2r = 9r
-4 + 9r = 32

Solving
-4 + 9r = 32

Solving for variable 'r'.

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

Add '4' to each side of the equation.
-4 + 4 + 9r = 32 + 4

Combine like terms: -4 + 4 = 0
0 + 9r = 32 + 4
9r = 32 + 4

Combine like terms: 32 + 4 = 36
9r = 36

Divide each side by '9'.
r = 4

Simplifying
r = 4

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