Question

7x-5y=6
-4x+3y=-4
(x + y = 10
Ix-y=5
a) (-2,-4} e f-15/2.5/2}
b) -2.4} e {15/2.5/2}
2.-4; e (-15/2.5/2
c) 2.4 e {-1572. -5/2}
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e) 2.4} e {15/2,5/27​

Answer 1

b) -2.4} e {15/2.5/2}