Note:
Solve for x in the following equation.
Example 1:
Either 2x-1=+5 or 2x-1=-5
The solutions are x=3 and -2.
If you would like to test yourself by working some problems similar to this
example, click on Problem
If you would like to go back to the equation table of contents, click on
Contents.
Do you need more help? Please post your question on our
S.O.S. Mathematics CyberBoard.
Step 1:
Step 2:
Solve the equation 2x-1=-5
The answers are 3 and -2. These answers may not be solutions to the
equation.
Check the solution x=3 by substituting 3 in the original equation for x.
If the left side of the equation equals the right side of the equation after
the substitution, you have found the correct answer.
Check the solution x = -2 by substituting -2 in the original equation
for x. If the left side of the equation equals the right side of the
equation after the substitution, you have found the correct answer.
You can also check your answer by graphing (the
left side of the original equation minus the right side of the original
equation). You will note that the two x-intercepts on the graph are located
at 3 and -2. This verifies our solutions graphically.
If you would like to work another example, click on Example
Contact us
Math Medics, LLC. - P.O. Box 12395 - El Paso TX 79913 - USA
users online during the last hour