Solve the system of equations:

y = x-4

-2x + y = 18

x = 7.3

Step-by-step explanation:

-2x + x-4 = 18

First, Combine Like Terms

-3x + (-4) = 18

Then, do Inverse Operations

-3x + - 4 = 18

+ 4 + 4

Cancel out the - 4 + 4 because it will equal zero and won't matter to the equation

-3x = 22

Do Inverse Operations again. In this case, you will divide.

-3x = 22

-3x/-3 = 22/-3

Cancel out the - 3x/-3

22/-3 = x

7.3 = x