You should write the question out as z= (y/x). To solve this, you would multiple x to the other side to get y alone. Then you would multiply z to the other side.
z= (y/x) Given
xz= y
x= y/z
You would need one more equation relation x and y to solve for both of them.
Y = 4/x^2
(20 - x)/5
17
If you are solving for y, it is fine. If you are solving for x, divide both sides by x and the equation should be x = y/x
y = mx + b
First, solve for y.y=-8xif x=2, then y=-16.
You would need one more equation relation x and y to solve for both of them.
(1/x) - (1/y) = (1/z) Get the left-hand side over a common denominator:- (y-x)/xy = 1/z Take the reciprocal of both sides:- z = xy / (y-x)
y=x+4
y=5-x
5
x=4 y=x+3 y=4+3 y=7
y=5
y=7+x =x=7-x
16
5