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Jet001
[13]
3 years ago
12
Solve the system of equations 2r + 2s = 50 and 2r – s = 17.
Mathematics
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2
answers:
Mars2501
[29]
3 years ago
8
0
2r +2s = 50
2r - s = 17
Multiply the top by -1
-2r - 2s = -50
2r - s = 17
-3s = -33
s = 11
Then plug 11 in the first equation to get r
2r + 2(11) = 50
2r + 22 = 50
2r = 28
r = 14
so 11 and 14
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shutvik
[7]
3 years ago
3
0
R = 14
s = 11
2(14)+2(11)=50
28+22=50
2(14) - 11 =17
28 - 11 =17
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