What is the value of x in the solution to the following system of equations?
x − y = −3
x + 3y = 5

We can rearrange the first equation (x - y = -3) to be
(from adding y to both sides then adding 3 to both sides)

we can plug (x + 3) for the y in the second equation
and get


we can distribute that 3


add like terms


subtract 9 from both sides


divide both sides by 4


therefore your answer would be