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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
What else can I help you with?
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.
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 -24?
There is no equation not inequality. So there is nothing to solve!
How do you solve 3a square root 21?
There is no equation (nor inequality) so there is nothing to solve.There is no equation (nor inequality) so there is nothing to solve.There is no equation (nor inequality) so there is nothing to solve.There is no equation (nor inequality) so there is nothing to solve.
How do you solve - 5?
There is equation of inequality and so there is nothing that can be solved.
How do you find the value of x in the following 10 times x 73?
You cannot solve an expression. You need an equation or inequality.You cannot solve an expression. You need an equation or inequality.You cannot solve an expression. You need an equation or inequality.You cannot solve an expression. You need an equation or inequality.
How do you solve 6.021023?
6.021023 is a single number: not an equation or inequality. You cannot solve a single number!
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 x-y-6?
You cannot solve it because it is an expression - not an equation nor inequality.
How do you solve s12at2.s?
There is no equation (nor inequality) in the question which can be solved!
How do you solve 9z plus 3z6?
There is no equation (nor inequality) to be solved!
How do you solve an equation using addition?
Addition and subtraction are inverse operations. So you can solve addition by subtracting.
Can you solve for a variable in an expression?
No, you can only simplify an expression. To solve for a variable, it must be in an equation.
