7r+2s=20

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Solution for 7r+2s=20 equation: 


Simplifying
7r + 2s = 20

Solving
7r + 2s = 20

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.
7r + 2s + -2s = 20 + -2s

Combine like terms: 2s + -2s = 0
7r + 0 = 20 + -2s
7r = 20 + -2s

Divide each side by '7'.
r = 2.857142857 + -0.2857142857s

Simplifying
r = 2.857142857 + -0.2857142857s

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