How do you solve the question to this problem what is the answer to this problem how do you work this problem out

You can do it like this. Subtract the right side. Expand parentheses. Collect terms. Divide by the coefficient of x. Add the opposite of the constant term.

3(2x -3) -9x -4 -(2x +12) = 0 . . . . . . subtract the right side
6x -9 -9x -4 -2x -12 = 0 . . . . . . . . . .eliminate parentheses
x(6 -9 -2) -(9 +4 +12) = 0 . . . . . . . . . collect terms
-5x -25 = 0 . . . . . . . . . . . . . . . . . . . . finish collecting terms
x +5 = 0 . . . . . . . . . . . . . . . . . . . . . . . divide by the coefficient of x
x = -5 . . . . . . . . . . . . . . . . . . . . . . . . . add the opposite of the constant

These general instructions will work for any single-variable linear equation.

b 15 gallons of fuel for $60.50

Step-by-step explanation:

because 1 gallon of fuel is for $4.299

and when you multiply 15×4.299 the answer is 64.485 which is greater than the offer you are getting it for.