2r+5s-7(9r-3s)=

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Solution for 2r+5s-7(9r-3s)= equation:


Simplifying
2r + 5s + -7(9r + -3s) = 0
2r + 5s + (9r * -7 + -3s * -7) = 0
2r + 5s + (-63r + 21s) = 0

Reorder the terms:
2r + -63r + 5s + 21s = 0

Combine like terms: 2r + -63r = -61r
-61r + 5s + 21s = 0

Combine like terms: 5s + 21s = 26s
-61r + 26s = 0

Solving
-61r + 26s = 0

Solving for variable 'r'.

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

Add '-26s' to each side of the equation.
-61r + 26s + -26s = 0 + -26s

Combine like terms: 26s + -26s = 0
-61r + 0 = 0 + -26s
-61r = 0 + -26s
Remove the zero:
-61r = -26s

Divide each side by '-61'.
r = 0.4262295082s

Simplifying
r = 0.4262295082s

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