Answer:
the answer to x = -1 would be x =-1, you are stating what x is, unless there is more to the question
Step-by-step explanation:
-4x - 2y = 18
+ (4x - 4y = -36)
=> -6y = -18, y = 3
As we added the equations together, we have eliminated x and found y.
Hence the correct answer is "Add to eliminate x".
Answer:
(-1,0)(0,1)(3,4)
Step-by-step explanation:
Answer:
the price of each kind of ticket is $22 and $3 respectively
Step-by-step explanation:
Let us assume the adult be x
And, the children be y
Now the equations would be
x + y = $25
x = $25 - y ............(1)
45x + 60y = $1,170
3x + 4y = $78........(ii)
Now put the x value in the equation 2
3($25 - y) + 4y = $78
$75 - 3y + 4y = $78
y = $3
x = $25 - y
= $25 - $3
= $22
hence, the price of each kind of ticket is $22 and $3 respectively