5r+3s-3(7r-9s)=

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Solution for 5r+3s-3(7r-9s)= equation:


Simplifying
5r + 3s + -3(7r + -9s) = 0
5r + 3s + (7r * -3 + -9s * -3) = 0
5r + 3s + (-21r + 27s) = 0

Reorder the terms:
5r + -21r + 3s + 27s = 0

Combine like terms: 5r + -21r = -16r
-16r + 3s + 27s = 0

Combine like terms: 3s + 27s = 30s
-16r + 30s = 0

Solving
-16r + 30s = 0

Solving for variable 'r'.

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

Add '-30s' to each side of the equation.
-16r + 30s + -30s = 0 + -30s

Combine like terms: 30s + -30s = 0
-16r + 0 = 0 + -30s
-16r = 0 + -30s
Remove the zero:
-16r = -30s

Divide each side by '-16'.
r = 1.875s

Simplifying
r = 1.875s

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