Br+7s=d

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Solution for Br+7s=d equation: 


Simplifying
Br + 7s = d

Solving
rB + 7s = d

Solving for variable 'r'.

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

Add '-7s' to each side of the equation.
rB + 7s + -7s = d + -7s

Combine like terms: 7s + -7s = 0
rB + 0 = d + -7s
rB = d + -7s

Divide each side by 'B'.
r = dB-1 + -7sB-1

Simplifying
r = dB-1 + -7sB-1

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