How do you solve #12v+14+10v=80#?
See a solution process below:
First, group and combine like terms on the left side of the equation:
Now, divide each side of the equation by
A lot of explanation is given as I wish you to fully understand the process.
Thar bar over the
The objective is to have just one
To explain the principle using fruit.
Suppose you have two boxes. One containing 12 apples and the other containing 10 apples. You them empty one box into the other. Putting them together (adding). Consequently, that one box now has 12apples + 10apples =22 apples
Ok! Suppose that instead of using the word apples we just use the its first letter. We than have
Using the above concept.
Re grouping gives
The brackets have no purpose other than to emphasize the grouping.
Now we put all the numbers on the right.
Note that the shortcut is to move it to the other side and give it the sign of the revers process. On the left it is add so on the right it is subtract
Now we get the
divide both sides by
Note that the short cut is to move it to the other side and give it the sign of the reverse process. On the left it is multiply. On the right it is divide.
There is no indication in the question that we may give an imprecise answer. The decimal solution would be
so if you rounded this it would not be precise.
Precise answers would be: