Question

Complete the missing value in the solution to the equation.

5x - 2y = 30

(8, ? )

Answer 1

Answer: y = 5

Explanation:

5x - 2y = 30

(8, ? )

5 · 8 - 2y = 30

40 - 2y = 30

40 - 2y - 40 = 30 - 40

- 2y = - 10

- 2y ÷ (- 2) = - 10 ÷ (- 2)

y = 5

(8, 5)