Solve each system by elimination

Z=2x-3y-7

Y=0

-2y+z=3

Sub in for y for 0 and z for - 2x-3y-7

-2 (0) + 2x-3 (0) - 7=3

Then simplify

2x-7=3

Then add 7 to both sides

2x=10

Then divide by 2

x=5

Then sub in x and y for the equation for z

Z=2 (5) - 3 (0) - 7

Then simplify

Z=10-7

Then solve

Z=3

Y=0

X=5