4r+5s-9(4r-8s)=

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Solution for 4r+5s-9(4r-8s)= equation:


Simplifying
4r + 5s + -9(4r + -8s) = 0
4r + 5s + (4r * -9 + -8s * -9) = 0
4r + 5s + (-36r + 72s) = 0

Reorder the terms:
4r + -36r + 5s + 72s = 0

Combine like terms: 4r + -36r = -32r
-32r + 5s + 72s = 0

Combine like terms: 5s + 72s = 77s
-32r + 77s = 0

Solving
-32r + 77s = 0

Solving for variable 'r'.

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

Add '-77s' to each side of the equation.
-32r + 77s + -77s = 0 + -77s

Combine like terms: 77s + -77s = 0
-32r + 0 = 0 + -77s
-32r = 0 + -77s
Remove the zero:
-32r = -77s

Divide each side by '-32'.
r = 2.40625s

Simplifying
r = 2.40625s

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