Question 304099: i just don't understand this
3x-7<2x+1 Can you please show me step by step?
thank you Found 2 solutions by Alan3354, josmiceli:Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! 3x-7<2x+1
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The object is to solve for x, meaning to get x on the left side by itself.
3x-7<2x+1
Add 7
3x<2x+8
Subtract 2x
x<8
x is less than 8
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That's all. It's the same as if the < were an equal sign (in this case).
You can put this solution on YOUR website!
Add to both sides
Subtract from both sides answer
You can test this by plugging in 7.99 and then 8 into the inequality true
and then
This is not true, so looks correct
