Question

Use the matrices to answer the question.
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Which matrix is equal to A + 2B - C?
Answer choices:
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Note: Image attached above

Answer 1

well let's just look at the first # of each matrix

A = 5
B = 4
C = 2

so the first # of the solution matrix must be

A + 2B - C = 5 + 2(4) - 2 = ?
let me know what you solution you might get

Answer 2

I think it's 11

Answer 3

good so which solution matrix has 11 as it's first #?

Answer 4

we got positive 11 so A is the only solution

Answer 5

Sorry, matrix B has -11

Answer 6

So, A is the answer, right?

Answer 7

yes