Answer:
y = 15x
Step-by-step explanation:
Given x and y are in direct variation then the equation relating them is
y = kx ← k is the constant of variation
To find k use the condition x = 2, y = 30, then
30 = 2k ( divide both sides by 2 )
15 = k
y = 15x ← equation of variation
X+5=18
first get rid of the 5
so X+5-5=18-5
which makes X=13
if any questions please ask
y=7m+6
subtract 6 from each side
y-6 = 7m
divide by 7
(y-6)/7 =m
A = 6b
divide by 6
A/6 = b
Yes. They are all correct. Good job