garywinthorpe696
garywinthorpe696
25-01-2021
Mathematics
contestada
7 - 2x - 5y=-7
3x + 4y = 7
Respuesta :
jarin77
jarin77
25-01-2021
-7 + 7 = 0
-5y = 2x
-5y/5 = y
2x/5 = 2x/5
y = 2x/5
4y = -3x + 7
4y/4 = y
-3x/4 + 7/4
y = -3x/4 + 7/4
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