-9r+6t-s-5r+s+4t-t+2s-r=

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Solution for -9r+6t-s-5r+s+4t-t+2s-r= equation:


Simplifying
-9r + 6t + -1s + -5r + s + 4t + -1t + 2s + -1r = 0

Reorder the terms:
-9r + -5r + -1r + -1s + s + 2s + 6t + 4t + -1t = 0

Combine like terms: -9r + -5r = -14r
-14r + -1r + -1s + s + 2s + 6t + 4t + -1t = 0

Combine like terms: -14r + -1r = -15r
-15r + -1s + s + 2s + 6t + 4t + -1t = 0

Combine like terms: -1s + s = 0
-15r + 0 + 2s + 6t + 4t + -1t = 0
-15r + 2s + 6t + 4t + -1t = 0

Combine like terms: 6t + 4t = 10t
-15r + 2s + 10t + -1t = 0

Combine like terms: 10t + -1t = 9t
-15r + 2s + 9t = 0

Solving
-15r + 2s + 9t = 0

Solving for variable 'r'.

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

Add '-2s' to each side of the equation.
-15r + 2s + -2s + 9t = 0 + -2s

Combine like terms: 2s + -2s = 0
-15r + 0 + 9t = 0 + -2s
-15r + 9t = 0 + -2s
Remove the zero:
-15r + 9t = -2s

Add '-9t' to each side of the equation.
-15r + 9t + -9t = -2s + -9t

Combine like terms: 9t + -9t = 0
-15r + 0 = -2s + -9t
-15r = -2s + -9t

Divide each side by '-15'.
r = 0.1333333333s + 0.6t

Simplifying
r = 0.1333333333s + 0.6t

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