Which method would be the simplest way to solve the system?

7x+5y=19

-7x-2y=-16

A) graphing

B) substitution

C) elimination

D) distributive

It would be elimination (C) because 7x and - 7x can be eliminated into 0.

7x + 5y = 19

-7x - 2y = - 16

3y = 3

3 3

y = 1

7x + 5y = 19

7 (1) + 5y = 19

7 + 5y = 19

- 7 - 7

5y = 12

5 5

y = 2.4

(x, y) = (1, 2.4)

elimination method

7x+5y=19

-7x-2y=-16

just add them x is eliminated

3y=3

y=1

7 (1) + 5y=19

5y=19-7

y=12/5