irenemckenna29
irenemckenna29
09-12-2020
Mathematics
contestada
2x +y =4 and 5x + 4y = 7
Respuesta :
erdodykarla
erdodykarla
09-12-2020
x=2-y/2 for the first problem
y=4-2x for the first problem
x=7/5-4y/5 for the second problem
y=7/4-5x/4 for the second problem
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