Question

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

Answer 1

The answer is:

↬ 21

Work/explanation:

To evaluate further, plug in -3 for a, 9 for b and -6 for c

`\bf{b-2a-c}`

`\bf{9-2a-c}`

`\bf{9-2(-3)-(-6)}`

Simplify

`\bf{9-2(-3)+6}`

`\bf{9-(-6)+6}`

`\bf{9+6+6}`

`\bf{9+12}`

`\bf{21}`

Hence, the answer is 21.

Answer 2

21

Explanation:

b - 2a - c

(9) -2(-3) - (-6)

9 + 6 + 6

21

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