Answer:
(5,7)
Step-by-step explanation:
8x + 7y = 89
2x + 5y = 45
Multiply the second equation by 4
4(2x + 5y) = 45*4
8x +20y = 180
Subtract the first equation
8x +20y = 180
-8x -7y = -89
--------------------------
13y = 91
Divide each side by 13
13y/13 = 91/13
y =7
Now solve for x
2x+5y =45
2(x) +5(7) = 45
2x +35 = 45
Subtract 35 from each side
2x+35-35 = 45-35
2x =10
Divide each side by 2
2x/2 = 10/2
x=5
