Question

A consistent and dependent system is formed by the equations y = 3x + 9 and

6x – 2y = A, where A is a real number. Find the value of A.
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Answer 1

A = -18.

Explanation:

We are given that y = 3x +9.

From this, we gather 3x - y = -9.

We then multiply both sides by 2 to get 6x – 2y = -18. Therefore, A = -18.