-3(r-1)-r=36

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Solution for -3(r-1)-r=36 equation:


Simplifying
-3(r + -1) + -1r = 36

Reorder the terms:
-3(-1 + r) + -1r = 36
(-1 * -3 + r * -3) + -1r = 36
(3 + -3r) + -1r = 36

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

Solving
3 + -4r = 36

Solving for variable 'r'.

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

Add '-3' to each side of the equation.
3 + -3 + -4r = 36 + -3

Combine like terms: 3 + -3 = 0
0 + -4r = 36 + -3
-4r = 36 + -3

Combine like terms: 36 + -3 = 33
-4r = 33

Divide each side by '-4'.
r = -8.25

Simplifying
r = -8.25

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