daniellepowers daniellepowers

27-04-2016
Mathematics

Answered

solve the system of equation 2r+2s=50 and 2r-s=17

Ar=14,s=11

b.r=-8,s=33

c.r=3,s=11

d.r=25,s=33

Verified Answer :

Panoyin Panoyin

27-04-2016

2r + 2s = 50
2r - 1s = 17
3s = 33
3 3
s = 11
2r - s = 17
2r - 11 = 17
+ 11 + 11
2r = 28
2 2
r = 14
(r, s) = (14, 11)

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