Answer:
2
Step-by-step explanation:
3p + q = 8
3p - q = 10
→ Minus the two equations away from each other which would cancel out 3p
2q = -2
→ Divide both sides by 2 to isolate q
q = -1
→ Substitute q = -1 back into 3p + q = 8
3p - 1 = 8
→ Add 1 to both sides to isolate p
3p = 9
→ Divide both sides by 3 to isolate p
p = 3
⇒ The question asks us to find p + q so,
3 + - 1
→ Remember the minus cancels out the plus
3 - 1 = 2
