Question

if a is equal to 1 b is equal to minus 2 C is equal to -1 show that 7 a + b + C is equal to two ABC​

Answer 1

this is your answer................

Answer 2

Answer:

4

Step-by-step explanation:

L.H.S

7a+b+c

7×1+(-2)+(-1)

7-2-1=4

R.H.S

2ABC

(2×1)+(2×-2)+(2×-1)

2-4-2

=4