What is the slope of 3x-7y=21

3/7

Step-by-step explanation:

(6, - 1 )

Step-by-step explanation:

Given the 2 equations

2x + y = 11 → (1)

x - 5y = 8 ← (2)

Multiplying (2) by - 4 and adding to (1) will eliminate the x- term

- 2x + 20y = - 32 → (3)

Add (1) and (3) to eliminate x

0 + 21y = - 21

21y = - 21 ( divide both sides by 21 )

y = - 1

Substitute y = - 1 into either of the 2 equations and solve for x

Substituting into (1)

2x - 1 = 11 ( add 1 to both sides )

2x = 12 ( divide both sides by 2 )

x = 6

solution is (6, - 1 )