7r-7s-2(4r-4s)=

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


Simplifying
7r + -7s + -2(4r + -4s) = 0
7r + -7s + (4r * -2 + -4s * -2) = 0
7r + -7s + (-8r + 8s) = 0

Reorder the terms:
7r + -8r + -7s + 8s = 0

Combine like terms: 7r + -8r = -1r
-1r + -7s + 8s = 0

Combine like terms: -7s + 8s = 1s
-1r + 1s = 0

Solving
-1r + 1s = 0

Solving for variable 'r'.

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

Add '-1s' to each side of the equation.
-1r + 1s + -1s = 0 + -1s

Combine like terms: 1s + -1s = 0
-1r + 0 = 0 + -1s
-1r = 0 + -1s
Remove the zero:
-1r = -1s

Divide each side by '-1'.
r = s

Simplifying
r = s

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