All Algebra 1 Resources
Example Questions
Example Question #31 : Proportions
Solve for .
To solve for , we just cross-multiply.
We have .
We get .
Example Question #1162 : Linear Equations
Solve for .
To solve for , we just cross-multiply.
We have .
We now have .
Divide both sides by , we get
.
Example Question #1163 : Linear Equations
Solve for .
To solve for , we just cross-multiply.
We have .
We now have .
Divide both sides by , we get
.
Example Question #1164 : Linear Equations
Solve for .
To solve for , we just cross-multiply.
We have .
We now have .
Divide both sides by , we get
.
Example Question #1165 : Linear Equations
Solve for .
To solve for , we just cross-multiply.
We have .
We now have .
Divide both sides by , we get
.
Example Question #1166 : Linear Equations
Solve for .
To solve for , we just cross-multiply.
We have .
We now have .
Take square root on both sides. Remember, when we do that the answer is .
Two negative or two positive numbers multiplied can give us a positve value. is the answer to that perfect square and we add the positive and negative sign to get
.
Example Question #1167 : Linear Equations
To solve for , we just cross-multiply.
We have .
When multiplying a negative and positive number, our answer is negative.
We now have .
We can divide both sides by to get
.
Take square root on both sides. Remember, when we do that the answer is . Two negative or two positive numbers multiplied can give us a positve value.
is the answer to that perfect square and we add the positive and negative sign to get
.
Example Question #31 : Proportions
Solve for .
To solve for , we just cross-multiply.
We have .
Remember we treat the expression and place into a parantheses. We take care of the parantheses first and distribute the .
We have .
Subtract both sides by .
We get .
Example Question #32 : Proportions
Solve for .
To solve for , we just cross-multiply.
We have .
Remember we treat the expression and place into a parantheses. We take care of the parantheses first and distribute the .
We have .
Add both sides by .
We have .
Then divide both sides by .
We get .
Example Question #41 : Proportions
Solve for .
To solve for we want to isolate it on one side of the equation with all other constants on the other side.
Multiply both sides by .
We have .
Subtract both sides by .
We have .
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