Question

Solve the system by elimination,
-7x + y 29
10x + y = 16​

Answer 1

x = -13/17

y =

Explanation:

-7x + y = 29 ----> y = 7x + 29

10x + y = 16 -----> 10x + 7x + 29 = 16

10x + 7x + 29 = 16

17x = -13

x = -13/17

-7x + y = 29

-7 * -13/17 + y = 29

91/17 + y = 29

y = 23 11/17

Answer 2

-7x + y = 29

10x + y = 16 ( sign changes)

----------------

-17x = 13

x = 13/-17

-7x + y = 29

- 7 (13/-17) + y = 29

5.3 + y = 29

y = 29-5.3

y = 23.7

hope it helps!