27.6k views
3 votes
Evaluate the expression
when a=4 and b = -4
2b-a

User RevNoah
by
7.7k points

2 Answers

6 votes

Answer:

- 12

Explanation:

a = 4

b = - 4

2(- 4) - 4

- 8 - 4

Subtract 4 is the dame as adding its opposite which is - 4.

- 8 + (- 4)

= - 12

Hope this helps :)

User Bruno Finger
by
9.1k points
3 votes
Substitute A and B into equation:
2(-4) - (4)
=-12
:)
User Meijuh
by
8.7k points

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