Question

to start to solve the system of equations below, which number would you multiply in the equation -2x-5y=-1? The two equations are -2x-5y=-1 and 4x+2y=8

Answer 1

3,-1

Explanation:

-2x-5y=-1

4x+2y=8

Solve for y:

-2x=5y-1

x=-2.5y+.5

4(2.5y+5) +2y=8

10y+20+2y=8

12y=-12

y=-1

Solve for x:

-2x=5(-1)-1

-2x=-6

x=3