4r+36-r=9r

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Solution for 4r+36-r=9r equation:


Simplifying
4r + 36 + -1r = 9r

Reorder the terms:
36 + 4r + -1r = 9r

Combine like terms: 4r + -1r = 3r
36 + 3r = 9r

Solving
36 + 3r = 9r

Solving for variable 'r'.

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

Add '-9r' to each side of the equation.
36 + 3r + -9r = 9r + -9r

Combine like terms: 3r + -9r = -6r
36 + -6r = 9r + -9r

Combine like terms: 9r + -9r = 0
36 + -6r = 0

Add '-36' to each side of the equation.
36 + -36 + -6r = 0 + -36

Combine like terms: 36 + -36 = 0
0 + -6r = 0 + -36
-6r = 0 + -36

Combine like terms: 0 + -36 = -36
-6r = -36

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

Simplifying
r = 6

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