Question

What is the x-value of the solution to this system of equations x=-1/2y 6x+y=4
A. -1
B. 8
C. -2
D. 1

Answer 1

9514 1404 393

Answer:

  D.  1

Step-by-step explanation:

Solve the first equation for y, then substitute that into the second equation.

  -2x = y

  6x +(-2x) = 4 . . . . substitute

  4x = 4 . . . . simplify

  x = 1 . . . . divide by 4