Question

What is the best first step to solve the system using elimination?

6x – 5y = 4
9x + y = –17

Answer 1

add them

Answer 2

first step multiply 2nd equation with 5 then add

Answer 3

u can solve for x

Answer 4

Yeah. That's what I'd do. You want the coefficient for y to cancel. Or you could choose to cancel the coeffecient for x, but in this case, that is a bit trickier.

Answer 5

Solve both equations for y, set y = y, then solve for x, then solve for y.

Answer 6

Practice makes a man perfact

Answer 7

6x – 5y -4 = 9x + y +17

Answer 8

6x-5y=4
9x+y=-17 multiply by 5 =>

6x -5y=4
45x +5y=-85 (now u add them)
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51x +0 =-81 => x=-81/51=-27/17

6*-27/17-5y=4=> y=46/17