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A system of equations is as shown below x + l = 6 x – m = 5
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07 Apr 2019, 06:28
07 Apr 2019, 06:28
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A system of equations is as shown below
x + l = 6
x – m = 5
x + p = 4
x – q = 3
What is the value of l + m + p + q ?
(A) 2
(B) 3
(C) 4
(D) 5
(E) 6
x + l = 6
x – m = 5
x + p = 4
x – q = 3
What is the value of l + m + p + q ?
(A) 2
(B) 3
(C) 4
(D) 5
(E) 6
Re: A system of equations is as shown below x + l = 6 x – m = 5
[#permalink]
14 Apr 2020, 09:53
14 Apr 2020, 09:53
1
x + l = 6 --> equ1
x – m = 5 --> equ2
x + p = 4 --> equ3
x – q = 3 --> equ4
equ1 - equ2 + equ3 - equ4
x + l - (x – m) + x + p -(x – q) = 6-5+4-3
l + m + p + q = 2
Hence, A is the Answer.
x – m = 5 --> equ2
x + p = 4 --> equ3
x – q = 3 --> equ4
equ1 - equ2 + equ3 - equ4
x + l - (x – m) + x + p -(x – q) = 6-5+4-3
l + m + p + q = 2
Hence, A is the Answer.
gmatclubot
Re: A system of equations is as shown below x + l = 6 x – m = 5 [#permalink]
14 Apr 2020, 09:53
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