Question

Identify Variables

X: is 12
Y: is 4
Equations
x + y = 12
x + y = 4
x-y = 12
x- y =4

Answer 1

Explanation:

Substitute x = 12 and y = 4 into the equations:

1.

`12 + 4 = 12`

Incorrect.

2.

`12 + 4 = 4`

Incorrect.

3.

`12 - 4 = 12`

Incorrect.

4.

`12 - 4 = 4`

Incorrect.

All equations are incorrect when x and y are substituted.