3r+7s-3(5r-5s)=

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Solution for 3r+7s-3(5r-5s)= equation:


Simplifying
3r + 7s + -3(5r + -5s) = 0
3r + 7s + (5r * -3 + -5s * -3) = 0
3r + 7s + (-15r + 15s) = 0

Reorder the terms:
3r + -15r + 7s + 15s = 0

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

Combine like terms: 7s + 15s = 22s
-12r + 22s = 0

Solving
-12r + 22s = 0

Solving for variable 'r'.

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

Add '-22s' to each side of the equation.
-12r + 22s + -22s = 0 + -22s

Combine like terms: 22s + -22s = 0
-12r + 0 = 0 + -22s
-12r = 0 + -22s
Remove the zero:
-12r = -22s

Divide each side by '-12'.
r = 1.833333333s

Simplifying
r = 1.833333333s

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