7r-12+3s+8r-11s=

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Solution for 7r-12+3s+8r-11s= equation:


Simplifying
7r + -12 + 3s + 8r + -11s = 0

Reorder the terms:
-12 + 7r + 8r + 3s + -11s = 0

Combine like terms: 7r + 8r = 15r
-12 + 15r + 3s + -11s = 0

Combine like terms: 3s + -11s = -8s
-12 + 15r + -8s = 0

Solving
-12 + 15r + -8s = 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 + 15r + 12 + -8s = 0 + 12

Reorder the terms:
-12 + 12 + 15r + -8s = 0 + 12

Combine like terms: -12 + 12 = 0
0 + 15r + -8s = 0 + 12
15r + -8s = 0 + 12

Combine like terms: 0 + 12 = 12
15r + -8s = 12

Add '8s' to each side of the equation.
15r + -8s + 8s = 12 + 8s

Combine like terms: -8s + 8s = 0
15r + 0 = 12 + 8s
15r = 12 + 8s

Divide each side by '15'.
r = 0.8 + 0.5333333333s

Simplifying
r = 0.8 + 0.5333333333s

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