Question

Simulateneous equations
7p +9q = 15
2p + 3q=3​

Answer 1

Answer: q = -3, p = 6

Explanation:

Multiply second equation by 3. 6q + 9q = 9. Equation one minus equation two which gives you p = 6. Then plug it in the second equation. 12 + 3q = 3. 3q = -9. q = -3.