Posted by Anonymous on Thursday, September 24, 2009 at 8:12pm.
solve using the addition principle.
6+x>5
I have not done one of these problems with the less and greater sign... can someone please help me? thanks

math  Christiaan, Thursday, September 24, 2009 at 8:20pm
Well, when working with the less and greater signs (or inequalities as they are called), you can always work in the same as you would do with normal equation (in other words, just replace the less and greater signs with an equals sign).
So for this equation you would get:
6+x=5 if and only if
x=5+6 if and only if
x=11
Now, in the final step, you replace the equals sign back with the greater sign, so you get:
x<11
When working with inequalities, you have to keep one thing in mind:
if you multiply each side of your inequality with a negative number, you have to change your less sign into a greater sign, and vice versa.
e.g. 5x > 10
if you multiply both sides with (1/5), then you have to change the greater sign into a less sign:
x < 2

math  Anonymous, Thursday, September 24, 2009 at 8:28pm
thank you so much, I wrote down your helpful tips appreciate it
Answer This Question
Related Questions
 Math (Algebra)  Solve using the multiplication principle 7x <_ 35 the sign ...
 algebra  Solve using the multiplication principle 7x <_ 35 the sign is an ...
 math  what is the rule for greater than less than sign. The greater than sign...
 algebra  Q: when graphing the equation y = 4/3x + 2, the y intercept is? A: (0,...
 ALGEBRA  Hi. I have the answer and have worked this out. I just want to make ...
 ALGEBRA  Hi. I have the answer and have worked this out. I just want to make ...
 Math equation  solve using the addition and multiplication principle 5x+24 ...
 math equation  solve using the addition and multiplication principle 5x+24x is...
 math, thanx!  Describe in your own words how to solve a linear equation using ...
 algebra  Describe in your own words how to solve a linear equation using the ...
More Related Questions