Question

What is the value of x in the solution to the following system of equations?

x − y = −3
x + 3y = 5

Answer 1

multiply the first equation by 3, then add them together to eliminate y

Answer 2

3x - 3y = -9 (3 times the first equation)
x + 3y = 5
------------- add them together
4x = -4 no more y variable

like that

Answer 3

divide both sides of the remaining equation by 4

x = ...

Answer 4

-1

Answer 5

is that the answer?