Question

If a = 1 , b = -2 and c = -1 , show that 7a + b + c = 2abc​

Answer 1

Answer:

7a+b+c = 2abc

Step-by-step explanation:

7 a + b + c

(7 × 1 ) + -2 × (-1)

7+ -2-1

7+(-3)

=4

2 × 1 ×-2 ×(-1)

2×-2×(-1)

-4×-1

4

hope it helps ,