-10r+9s+4+r-s-12=

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Solution for -10r+9s+4+r-s-12= equation:


Simplifying
-10r + 9s + 4 + r + -1s + -12 = 0

Reorder the terms:
4 + -12 + -10r + r + 9s + -1s = 0

Combine like terms: 4 + -12 = -8
-8 + -10r + r + 9s + -1s = 0

Combine like terms: -10r + r = -9r
-8 + -9r + 9s + -1s = 0

Combine like terms: 9s + -1s = 8s
-8 + -9r + 8s = 0

Solving
-8 + -9r + 8s = 0

Solving for variable 'r'.

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

Add '8' to each side of the equation.
-8 + -9r + 8 + 8s = 0 + 8

Reorder the terms:
-8 + 8 + -9r + 8s = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -9r + 8s = 0 + 8
-9r + 8s = 0 + 8

Combine like terms: 0 + 8 = 8
-9r + 8s = 8

Add '-8s' to each side of the equation.
-9r + 8s + -8s = 8 + -8s

Combine like terms: 8s + -8s = 0
-9r + 0 = 8 + -8s
-9r = 8 + -8s

Divide each side by '-9'.
r = -0.8888888889 + 0.8888888889s

Simplifying
r = -0.8888888889 + 0.8888888889s

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