4(r+5)=2s-7

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Solution for 4(r+5)=2s-7 equation: 


Simplifying
4(r + 5) = 2s + -7

Reorder the terms:
4(5 + r) = 2s + -7
(5 * 4 + r * 4) = 2s + -7
(20 + 4r) = 2s + -7

Reorder the terms:
20 + 4r = -7 + 2s

Solving
20 + 4r = -7 + 2s

Solving for variable 'r'.

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

Add '-20' to each side of the equation.
20 + -20 + 4r = -7 + -20 + 2s

Combine like terms: 20 + -20 = 0
0 + 4r = -7 + -20 + 2s
4r = -7 + -20 + 2s

Combine like terms: -7 + -20 = -27
4r = -27 + 2s

Divide each side by '4'.
r = -6.75 + 0.5s

Simplifying
r = -6.75 + 0.5s

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