y 0 5x 7y 20SolutionI guess question is incomplete you ha

y = 0

-5x - 7y = 20

Solution

I guess question is incomplete, you haven\'t mentioned what you want to calculate.

but i guess you want to solve this equation.

y=0     ---(1)

-5x-7y=20       ----(2)

put the value of y in equation 2 from 1

-5x-7(0)=20

-5x=20

x=-20/5

x=-4