Question

Use each method to solve system of linear equation. Show your solution.

-3x + y = 7

5x + 2y = 3

Substitution B. Elimination

Answer 1

x=-1 y =-1

Explanation:

multiply equation 1 with (-2)

+6x-2y=-14

5x+2y=3

now add equation 1 to equation 2

11x=-11

x=-1

now substitute x=1 in 1 or 2

5(1)+2y=3 5+2y=3 2y=3-5 2y= -2 y= -1