Question

Use substitution to solve the system of equations.how many solutions are there?

1/2x-1/3y=5
X=2/3y+10

Answer 1

one solution

x = 0

y = -15

Explanation:

1/2x-1/3y = 5

x = 2/3y+10

substitute x

1/2(2/3y+10)-1/3y = 5

1/3y+5-1/3y = 5

5 = 5

x = 0

-1/3y = 5

-1/3y/-1/3 = 5/-1/3

y = -15