x+ y = 5
2x - y =
4
First multiply everything in the first equation by 2
.
By multiplying everything in the first equation by 2 ,
you should get :
2x + 2y =
10
2x - y = 4 now subtract the two equation
.
By subtracting the two equations , you should get
:
3y = 6 divide both sides by 3
.
By dividing both sides by 3 , you should get
:
y = 2 which is your answer for " y
"
Now plug " y " into one of the
equation
x + 2 = 5 subtract both sides by 2
.
By subtracting both sides by 2 , you should
get
x = 3 which is your answer for " x
"
So " x " equals to 3 and " y " equals to
2
No comments:
Post a Comment