Solve this system using substitution and give your answer as a point: 7x - 5y = 35 and y = (1/5)x - 1.

Answer 1

Multiplies 2nd equation by 5:

5y = x-5

5y+5 = x

substitutes into 1st eq:

7(5y+5) - 5y = 35

35 y + 35 - 5y = 35

30y = 0

y = 0 ---> x=5

(5,0)