
Multiply both sides by 3

Simplify the numerators

Multiply both sides by 6

Simplify the numerator

Multiply both sides by x
12x - 18 = 15x Subtract 12x from both sides
-18 = 3x Divide both sides by 3
-6 = x Switch the sides to make it easier to read
x = -6
Check your answer by plugging -6 in for the x in the original problem:

Plug in -6 for x

Change

to

so all denominators are the same

Change

to

for easier work

Subtract the numerators (4 - (-1) )

=

So,
x = -6 .
Answer:
y=x-9/3
Step-by-step explanation:
f(x)=3x+9
let f(x)=y
y=3x+9
change position of x & y
x=3y+9
rearrange:
x-9=3y
y=x-9/3
Its 58.9875 so about $59
HOPE THIS HELPS!!
FEEL FREE TO FOLLOW ME IF YOU NEED ANYMORE HELP IN THE FUTURE
Answer:The answer is 42 gallons.
Step-by-step explanation:
The car traveled 180 miles on 6 gallons of gas, so it got 30 miles per gallon. So divide 1260 by 30 to find the number of gallons needed to go 1260 miles.