Question

12/a=-4
then solve this equation
2a²+3
​

Answer 1

Answer:

may this help uu

Step-by-step explanation:

a+b=6. (1). a-b=4. (2). By solving we get 2a=10. Then, a=10/2. A=5. Substitute a=5 in(1) or (2). Then a=1. Then ,b=4-a. From. Equation (2). Then b= 3.

Answer 2

Answer:

21 is the answer as in picture

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