3 years ago

5x-3y=-11 x-2y=2 this is for home work please help

1 answer:

8 0

5x - 3y = 11 ⇒ 5x - 3y = 11 ⇒ 5x - 3y = 11
x - 2y = 2 ⇒ -5(x - 3y) = 2 ⇒ -5x + 15y = 2
 12y = 13
 12 12
 y = 1 1/12
 5x - 3(1 1/12) = 11
 5x - 3 1/4 = 11
 +3 1/4 +3 1/4
 5x = 14 1/4
 5 5
 x = 2 17/20
 (x, y) = (2 17/20, 1 1/12)

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