4x - 3y = 17 5x + 4y = 60 x = 2, y = -3 x = 5, y = 8 x = 8, y = 5 x = -8, y = -5

4x - 3y = 17multiply by 4
5x + 4y = 60 ...multiply by 3

16x - 12y = 68 (result of multiplying by 4
15x + 12y = 180 (result of multiplying by 3
add
31x = 248
x = 248/31
x = 8

4x - 3y = 17
4(8) - 3y = 17
32 - 3y = 17
-3y = 17 - 32
-3y = - 15
y = -15/-3
y = 5

solution is (8,5) <==

What’s the question here? what have you been learning about?

I'm just guessing, but my answer would c. 0 to 300.