eplascencia428
eplascencia428
26-10-2020
Mathematics
contestada
11x + 3y = 24
x - 3y = 12
Respuesta :
HeepNguyen
HeepNguyen
26-10-2020
11x+3y=24
x-3y=12
x=12+3y
11(12+3y)+3y=24
132+33y+3y=24
132+36y=24
36y=-108
y=-3
x-3y=12
x-3(-3)=12
x+9=12
x=3
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