0
You need to isolate the variable you want to solve for, on one side of the equation. This involves getting rid of everything else. Note that what you do on one side of the equation, you also have to do on the other side. "Getting rid" of everything else basically means doing the inverse of the operation shown.
Example:
2x + 3 = 21
You might start by getting rid of the 3. For this, you subtract 3 on both sides. Subtracting 3 is the inverse of the operation shown in the equation, adding 3.
2x + 3 - 3 = 21 - 3
2x = 18
Next, you get rid of the 2. Once again, since in the equation there is a multiplication by 2, you divide by 2 - the inverse operation. In this case, you divide by 2 on each side:
2x/2 = 18/2
(2/2)x = 18/2
x = 9
Still curious? Ask our experts.
Chat with our AI personalities
Ezra
Rene
SteveAdd your answer:
Earn +20 pts
How to solve sin of cos inverse of x?
sin[cos-1(x)] is an expression; it is not an equation (nor inequality). An expression cannot be solved.
How do you solve for z if 15yz?
There is no equation (or inequality) to solve. 15yz is an expression and an expression cannot be solved.
How do you solve 9z plus 3z6?
There is no equation (nor inequality) to be solved!
How do you solve b plus 815?
It is not possible to "solve" b+815 because it is an expression - not an equation or inequality.
How do you solve algebraic expressions?
An equation or an inequality can be solved but an expression cannot be solved.
