Answer:
Step-by-step explanation:
13-2x 5
13-5= 8
2x 8
7x+5y=-24 (1)
4x+y=42 (2)
multiply equation (2) by 5 to get
20x+5y=210 (3)
then calculate (3)-(2) which gives you
13x=234 hence x=18
then substitute for x in either equation to get y=-30
Answer : 118 or -40
Explanation I didn’t know which one you meant


solve for "a", once you get "a", plug it back into either equation to get "b"