Question

Tolong dibantu yaa kakak*

Answer 1

Verified answer

2x + 3y = -5 || × 5
10x + 15y = -25 .. (1)

5x + 7y = -4 || × 2
10x + 14y = -8 ... (2)


10x + 15y = -25
10x + 14y = -8
---------------------- (-)
y = -17

2x + 3y = -5
2x + 3(-17) = -5
2x = 51 - 5
x = 46/2
x = 23

3x - 2y = 3(23) - 2(-17) = 69 + 34 = 103