x+2y=1 2x+y=8 find x and y

x + 2y = 1

2x + y = 8   

First multiply everything in the first equation by 2. By multiplying, you should get

2x + 4y = 2

2x + y =   8 now subtract 2x with 2x ( which means subtract 4y with " y " and 2 with 8

By subtracting,  you should get

3y = -6 now divide both sides by 3 

By dividing, you should get 

y = -2   which is your answer for " y " 

Now plug -2 into one of the equation

x + 2 ( -2 ) = 1 multiply 2 with -2

By multiplying, you should get

x - 4 = 1 now add 4 on both sides

By adding, you should get

x = 5.  which is your answer for " x " 

So your answer is x = 5 and y = -2