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Solve the inequality /2x+1/>=3 ​

Solve the inequality /2x+1/>=3 ​-example-1
User CuSK
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Hi there! |2x + 1| (greater than or equal to) 3. So the absolute value of an equation always results in a positive equation. If you haven't done negative integers yet, here..

|-4| = 4

|-3| = 3
|-2| = 2

-4 = -4
-3 = -3
-2 = -2

But when you put the absolute value marks next to them, the value turns positive. :D

So |2x + 1| is greater than or equal to 3. The number for x can be negative, since the equation is always turned positive. |2(-1) + 1| = 3 is 2(1) + 1 = 3. So yes, -1 would work. But then again, positive 1 will work too! The value just can't be zero, since that would be 2(0) + 1 = 3, which is 0 + 1 = 3, not true.

Values have to be [1, +infinity] and [-1, -infinity].
Hope that helps!

User Jeno Csupor
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