140 you divide 490 by 3.5.
Answer: x = 1
Step-by-step explanation: When we have this kind of setup, we want to put our variables together on one side of the equation and our numbers together on the other side of the equation.
So first, let's put our variables together on the left side
by subtracting 2x from both sides of the equation.
That gives us 3x + 9 = 12.
Now we can move our numbers to the right by
subtracting 9 from both sides and we get 3x = 3.
Now divide both sides by 3 and <em>x = 1</em>.
Answer:
<em>The dealership sold in August 24 trucks and 48 cars</em>
Step-by-step explanation:
Equations
A dealership reported they sold a total of 72 vehicles.
It also determined that for every 4 cars sold, they sold 2 trucks. It means that they sold twice as many cars as trucks.
Let x be the number of trucks sold.
It follows that 2x is the number of cars sold.
The sum of both numbers must equal 72:
x + 2x = 72
Simplifying:
3x = 72
Solving:
x = 72 / 3 = 24
The number of cars were
2x= 48
The dealership sold in August 24 trucks and 48 cars