Answer:
x is equal to -2 
the equation is x + 3y = 4 
so we substitute the value of 'x' which is -2 in equation x + 3 = 4 
Explanation:
then we move 3y on left side.
then we add 4 + 2 which is 6.
then it will be, y = 6/3
which is 2 
therefore we get y = 2 
hope this helps you ☺️☺️