Maths Videos - MathHelp.com - 1000+ Online Maths Lessons - By MathHelp.com
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| 00:0-1 | The following is a selected video from your teacher.com where | |
| 00:03 | you can browse over 450 complete math lessons with example | |
| 00:07 | videos , interactive practice problems , self tests and more | |
| 00:11 | . Try a complete lesson today at your teacher dot | |
| 00:14 | com to solve for X . In this equation , | |
| 00:20 | our first step is to simplify the left side by | |
| 00:24 | distributing this three through both terms inside the parentheses . | |
| 00:31 | When we do that we get three times one which | |
| 00:35 | is three and three times negative two X . Which | |
| 00:40 | is -6 X . So we have 3 -6 x | |
| 00:46 | equals negative nine . And now we have a setup | |
| 00:50 | that you should be very familiar with . Our next | |
| 00:53 | step is to isolate the X term by subtracting three | |
| 00:58 | from both sides of the equation On the left , | |
| 01:04 | 3 -3 cancels . And we're left with -6 X | |
| 01:11 | . On the right -9 -3 , simplifies to negative | |
| 01:17 | 12 . To get X by itself we divide both | |
| 01:22 | sides by -6 and X equals positive too . |
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