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Algebra Lessons

Tuesday, February 21st, 2012

I need help with my Algebra math lessons!?

So I learn from examples with work and stuff so can anyone solve these problems I made up right now to help me learn? So like solve for the variable

You want to end up with the variable on one side of the equation and everything else on the other side. So as you have have heard before, combine like terms.

subtract 5 from both sides:
3/7x = 8 – 5
3/7x = 3

divide both sides by 3/7 (dividing by a fraction is the same as multiplying by the reciprocal (flip) of the fraction. So in this case, multiply by 7/3)

x = 3 * (7/3) = 7

37 – 18 + 8w = 67
19 + 8w = 67

Remember, you want the w by itself so move the 19 over to the other side by subtracting it from both sides:

8w = 67 – 19
8w = 48

divide both sides by 8
w = 6

You should be able to figure out the other two from here…

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A Key to the First Lessons in Algebra: Containing the Answers to the Questions, with Numerous Explanations and Solutions $26.44 Used – Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.

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