Word Problem Solving Plan 1

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I don't know why but the way you explain it makes so much more sense than when I'm in class. Thanks a lot for creating this channel!

wcajes
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Just learned some of these principals in my math class. Sal really takes me to home base with his lesson.

Seattle
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This is amazing! before this video i had no clue how to do this but you explained it in the best way! Thanks so much!

minaakrawi
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Really helpful video but I would like to know why you insert 1x? (1:10 in video)

is it because you have 1 old salary which is 1x? 
what would happen if you did insert x without the 1?

I would appreciate explaination

majo
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Your using a calculator. We don't have calculators at school!!

vihaanj