czimiga
czimiga
27-10-2021
Mathematics
contestada
5x + y= 17, 3X - y= 7. Solve for x and y.
Respuesta :
iqalilcrybaby
iqalilcrybaby
27-10-2021
5x+y=17—(1)
3x-y=7—(2)
(1)+(2)
8x=24
x=3—(3)
(3) into (1)
5(3)+y=17
15+y=17
y=2
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