Question

Solve x + y, if x = -6 and y = 22

Answer 1

{x,y}={14,8}

Explanation:

Solve equation [2] for the variable x [2] x = y + 6

Plug this in for variable x in equation [1] [1] (y +6) + y = 22

[1] 2y = 16

Solve equation [1] for the variable y [1] 2y = 16

[1] y = 8

By now we know this much : x = y+6, y = 8

Use the y value to solve for x.

x = (8)+6 = 14

Answer 2

16

Explanation:

plug in the numeric values.

-6 + 22

16