Question

Evaluate b - 2 a - c for a = -3, b = 9, and c = -6.

Answer 1

21

Explanation:

Since the value of a , b and c are already given ,

we can input these values in the equation b - 2a -c

A/Q , a = -3 , b = 9 , c = -6

∴ b - 2a - c

= ( 9 ) - 2×( -3 ) - ( -6 ) [ Note : ( - ) × ( - ) = + ]

= 9 + 6 + 6

= 21

Answer 2

21

Explanation:

To evaluate the expression
`\sf b - 2a - c` for the given values of
`\sf a = -3`,
`\sf b = 9`, and
`\sf c = -6`, substitute these values into the expression:

`\sf b - 2a - c`

`\sf = 9 - 2(-3) - (-6)`

`\sf = 9 + 6 + 6`

`\sf = 21`

So,
`\sf b - 2a - c` is equal to 21 when
`\sf a = -3`,
`\sf b = 9`, and
`\sf c = -6`.