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Mathematics
Isabela Christian
11 May, 22:31
Q=3 (r+1) / r
Make r the subject of the formula
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Caden Oneill
11 May, 23:50
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Distribute the 3 to the parentheses. Q=3r+3/r
Next multiply both sides by r to get rid of the division sign.
Qr=3r+3
Subtract 3r on both sides and you get Qr-3r=3
Since both numbers have an r in it, we can factor out the r
r (Q-3) = 3
Then we divide Q-3 on both sides
r=3 / (Q-3)
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