Question

Which is the best first step when solving the following system of equations?

y= 7x + 3
y= 9x
1. Multiply the first equation by 7
2. Substitute 9x for y in the first equation
3. Multiply the second equation by -3
4. Substitute 7x for y in the second equation

Answer 1

i believe its 2.

Explanation:

i am taking the test now so ill telll if its wrong or not.

Answer 2

B

Explanation:

I took the quiz