5r+9s-7(2r-4s)=

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Solution for 5r+9s-7(2r-4s)= equation:


Simplifying
5r + 9s + -7(2r + -4s) = 0
5r + 9s + (2r * -7 + -4s * -7) = 0
5r + 9s + (-14r + 28s) = 0

Reorder the terms:
5r + -14r + 9s + 28s = 0

Combine like terms: 5r + -14r = -9r
-9r + 9s + 28s = 0

Combine like terms: 9s + 28s = 37s
-9r + 37s = 0

Solving
-9r + 37s = 0

Solving for variable 'r'.

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

Add '-37s' to each side of the equation.
-9r + 37s + -37s = 0 + -37s

Combine like terms: 37s + -37s = 0
-9r + 0 = 0 + -37s
-9r = 0 + -37s
Remove the zero:
-9r = -37s

Divide each side by '-9'.
r = 4.111111111s

Simplifying
r = 4.111111111s

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