Question

2x+3y=2 5x-2y=24 pelo método da comparação

Answer 1

2x + 3y = 2

3y = - 2x + 2

y = - 2x/3 + 2/3

5x - 2y = 24

2y = 5x - 24

y = 5x/2 - 24/2

y = 5x/2 - 12

- 2x/3 + 2/3 = 5x/2 - 12

- 4x/6 + 4/6 = 15x/6 - 72/6

15x + 4x = 4 + 72

19x = 76

x = 76/19

x = 4

y = 5x/2 - 12

y = 5*(4)/2 - 12

y = 20/2 - 12

y = 10 - 12

y = -2

(4, -2)