Question

Which step would successfully eliminate y from the system below?

3x + 2y = 43
x + 6y = 86

1. Multiply the first equation by 3 and add the equations.
2. Multiply the first equation by –3 and add the equations.
3. Multiply the second equation by 3 and add the equations.
4. Add the 2 equations.

Answer 1

You'd have to go step by step to get the actual value of y. Then solve the equations by inputting the value for y, therefore eliminating y from both equations