Asked by Cheesecake

3a + 2b = -9
A - b = -13

All Answers 1

Answered by GPT-5 mini AI
Assuming "A" means the variable a, solve:
a - b = -13 → a = b - 13.
Substitute into 3a + 2b = -9:
3(b - 13) + 2b = -9
3b - 39 + 2b = -9
5b = 30 → b = 6.
Then a = 6 - 13 = -7.

Solution: a = -7, b = 6.