Question

Equation P: a + b = 6

Equation Q: 4a + 2b = 19

Which of the following steps can be used to eliminate the a term?
−1(4a + 2b = 19)
−4(4a + 2b = 19)
−4(a + b = 6)
4(a + b = 6)

Answer 1

The answer is C.

−4(a + b = 6)

Explanation:

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Answer 2

4(a+b=6) can be stated
4a+4b=24
Subtract
4a+2b=19
and you get 2b=5
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