Question

3.Evaluate when a= 7, b= 5 and c = 3

i. 2a + b – c

ii. 2a – b + c

iii .a+2b+ c​

Answer 1

2a + b - C

2 ✖ 7 + 5 - 3

14 + 5 - 3

19 - 3

16

2. 2a - b + C

2 ✖ 7 - 5 + 3

14 - 5 + 3

9 + 3

12

3. a + 2b + C

7 + 2 ✖ 5 + 3

7 + 10 + 3

17 + 3

20

Hope it is helpful

Answer 2

Answer:

1=16

2=12

3=6

Step-by-step explanation:

1= 2*7+5-3

14+5-3

19-3

16

2=2*7-5+3

14-5+3

9+3

12

3=7-2*5+3

7-10+3

3+3

6

Hey mate there is your answer