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If QR = 18, RS = x -11, and QS = 2x - 11, what is QS?
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3 votes
If QR = 18, RS = x -11, and QS = 2x - 11, what is QS?

User JoeSchr
by
6.3k points

2 Answers

3 votes

Answer:

QS=QR+RS

2x-11= 18+x-11

2x-x= 18

x= 18

QS=2*18-11

=36-11

=25

User Paul Donohue
by
6.0k points
6 votes

Answer:

QS =25

Explanation:

QR + RS = QS

18 + (x-11) =2x-11

7 +x =2x -11

18=x

Plug in x

2(18) -11

36-11

QS=25

18 + (18-11) = 2(18)- 11

18+ 7 = 36 -11

25= 25

True

User Jackrabbit
by
6.3k points
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