-3r-s+5+5r+11s+7-6r-s=

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Solution for -3r-s+5+5r+11s+7-6r-s= equation:


Simplifying
-3r + -1s + 5 + 5r + 11s + 7 + -6r + -1s = 0

Reorder the terms:
5 + 7 + -3r + 5r + -6r + -1s + 11s + -1s = 0

Combine like terms: 5 + 7 = 12
12 + -3r + 5r + -6r + -1s + 11s + -1s = 0

Combine like terms: -3r + 5r = 2r
12 + 2r + -6r + -1s + 11s + -1s = 0

Combine like terms: 2r + -6r = -4r
12 + -4r + -1s + 11s + -1s = 0

Combine like terms: -1s + 11s = 10s
12 + -4r + 10s + -1s = 0

Combine like terms: 10s + -1s = 9s
12 + -4r + 9s = 0

Solving
12 + -4r + 9s = 0

Solving for variable 'r'.

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

Add '-12' to each side of the equation.
12 + -4r + -12 + 9s = 0 + -12

Reorder the terms:
12 + -12 + -4r + 9s = 0 + -12

Combine like terms: 12 + -12 = 0
0 + -4r + 9s = 0 + -12
-4r + 9s = 0 + -12

Combine like terms: 0 + -12 = -12
-4r + 9s = -12

Add '-9s' to each side of the equation.
-4r + 9s + -9s = -12 + -9s

Combine like terms: 9s + -9s = 0
-4r + 0 = -12 + -9s
-4r = -12 + -9s

Divide each side by '-4'.
r = 3 + 2.25s

Simplifying
r = 3 + 2.25s

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