-9r+3t-8s-5r+12s+4t-t+5s-r=

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Solution for -9r+3t-8s-5r+12s+4t-t+5s-r= equation:


Simplifying
-9r + 3t + -8s + -5r + 12s + 4t + -1t + 5s + -1r = 0

Reorder the terms:
-9r + -5r + -1r + -8s + 12s + 5s + 3t + 4t + -1t = 0

Combine like terms: -9r + -5r = -14r
-14r + -1r + -8s + 12s + 5s + 3t + 4t + -1t = 0

Combine like terms: -14r + -1r = -15r
-15r + -8s + 12s + 5s + 3t + 4t + -1t = 0

Combine like terms: -8s + 12s = 4s
-15r + 4s + 5s + 3t + 4t + -1t = 0

Combine like terms: 4s + 5s = 9s
-15r + 9s + 3t + 4t + -1t = 0

Combine like terms: 3t + 4t = 7t
-15r + 9s + 7t + -1t = 0

Combine like terms: 7t + -1t = 6t
-15r + 9s + 6t = 0

Solving
-15r + 9s + 6t = 0

Solving for variable 'r'.

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

Add '-9s' to each side of the equation.
-15r + 9s + -9s + 6t = 0 + -9s

Combine like terms: 9s + -9s = 0
-15r + 0 + 6t = 0 + -9s
-15r + 6t = 0 + -9s
Remove the zero:
-15r + 6t = -9s

Add '-6t' to each side of the equation.
-15r + 6t + -6t = -9s + -6t

Combine like terms: 6t + -6t = 0
-15r + 0 = -9s + -6t
-15r = -9s + -6t

Divide each side by '-15'.
r = 0.6s + 0.4t

Simplifying
r = 0.6s + 0.4t

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