All Pre-Algebra Resources
Example Questions
Example Question #102 :One Step Equations
Solve:
Multiply both sides by the reciprocal of the coefficient in front ofto isolate the variable.
By multiplying the reciprocal of the coefficient in front of, we can see that thatcan be left as a single variable.
Multiply the whole number with the numerator.
The answer is:
Example Question #103 :One Step Equations
Solve for the unknown variable:
To isolate the unknown variable, multiply both sides by, which is the reciprocal of the coefficient in front of thevariable.
The left side of the equation will become. On the right side of the equation, multiply the integer with the numerator of the fraction.
The answer is:
Example Question #104 :One Step Equations
Solve:
In order to isolate thevariable, first multiply both sides by the reciprocal of.
Cancel out the fractions on the left side of the equation.
For these two fractions, multiply the numerator with the numerator, and the denominator with the denominator.
例子问题# 105:One Step Equations
Solve:
In order to isolate thevariable, multiply both sides by the reciprocal of the coefficient in front of the.
Simplify the fractions on the left side.
Reduce theon the denominator with thein the numerator.
Example Question #106 :One Step Equations
Solve:
In order to isolate thevariable, multiply the reciprocal ofon both sides of the equation.
Simplify the fractions on the left side of the equation.
Multiply the three with the seven on the right side of the equation.
Example Question #107 :One Step Equations
Solve forin the following equation.
When solving for x, we need to get x alone. To do that, we need to multiply both sides by 4.
Multiply through.
Simplify.
Solution.
Example Question #108 :One Step Equations
Find the solution for g.
This is a simple one-step equation. The objective is to solve for g and isolate it on the right side.
The steps are as follows:
You can check your answer by inserting g into the original equation as follows.
It works!
Example Question #109 :One Step Equations
Solve forin the following equation:
When solving forx, we want to getxto stand alone. We subtractfrom both sides. We get
We must find a common denominator. In this case, the lowest common denominator is 4. So we get
Example Question #110 :One Step Equations
Solve forin the following equation:
When solving forx, we must getxto stand by itself. Therefore, in the equation
we will addto both sides. We get
To add the fractions, we must find a common denominator.
In this case, it's 15.
So,
Example Question #41 :One Step Equations With Fractions
Solve forain the following equation:
When solving fora, we want to getaby itself. So in the equation,
we must subtractfrom both sides. We get
When subtracting fractions, we need to find a common denominator. In this case, it's 6. So,
Now, we subtract the numerators and get