All Pre-Algebra Resources
Example Questions
Example Question #171 : Algebraic Equations
Solve:
To solve for , first add 1.5 on both sides of the equation.
Divide both sides by negative three.
Example Question #22 : Two Step Equations With Decimals
Solve:
In order to solve this equation, first add on both sides of the equation.
Simplify the left and right side of the equation.
Convert the decimal on the left side of the equation to a fraction.
Rewrite the equation.
To isolate the unknown variable, multiply by the reciprocal of , or , on each side of the equation.
Simplify the left and the right side of the equation.
Example Question #123 : Two Step Equations
Solve:
In order to solve this equation, we need to group the terms and separate the integer .
Add on both sides.
Add both sides by .
Add the left side of the equation to get .
The answer is:
Example Question #23 : Two Step Equations With Decimals
Solve the following equation:
To isolate the variable, subtract nine from both sides of the equation.
Simplify both sides of the equation.
Convert the decimal on the left side of the equation to a fraction.
Rewrite the equation.
Multiply both sides by to get by itself.
Simplify both sides of the equation. Multiply the tens together on the right side of the equation and leave the fraction in improper form.
The answer is:
Example Question #125 : Two Step Equations
Solve the two-step equation below.
Use properties of equality. Start with either subtraction or addition then multiplication or division.
Now divide by 32.
Check your answer by substituting 7.25 in place of x.
Both sides are equal.
Example Question #126 : Two Step Equations
Find the solution for y.
In this two step equation we must isolate and find the solution of y. So the first step is to add both sides by 3.4 as follows:
The next step is divide both sides by 1.25 as follows:
You can check your answer by inserting 8 into y in the original equation as follows:
It's correct!
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