Monday, August 30, 2010

Some algebra problem

Here below i have answers to math problems, look at these problems and look at the steps used to solve these problems. I have already worked on 5th grade math problems earlier.


Question 1:

x - 7 = 20

Solution:

Adding 7 on both sides,

x - 7 + 7 = 20 + 7

x = 20 + 7

x = 27

Question 2 ( algebra word problem)

A number n times 3 is equal to 120.

This is an easy one. The word 'times' says you that you must multiply the variable n by 3, and that the result is equal to 120. The equation can be written as below.

3n = 120

I will come back again with some interesting topic again, Lets learn precalculus formulas in our coming post.

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