4<7 Multiply both sides by 7
4 < 7
4*7 < 7*7 or, 28 < 49
-8<8 Divide both sides by -4
-8/-4 < 8/-4
2 < -2
Nope. 2 > -2
what happened? when you multiply/divide by a negative value, you switch the direction of the inequality. It's really just a shorthand way of moving something to the other side.
Other than that, as long as you do the same thing to both sides, the inequality remains true.
I really don't understand please help with answers and explanations.
Follow the instructions for the following inequalities.
1. 4<7 Multiply both sides by 7 , then by 6, then by 3, then by 10
2. 11>-2 Add 5 to both sides, then add 3, then add (-4)
3. -4<-2 Subtract 6 from both sides, then 8, and then 2
4. -8<8 Divide both sides by -4, then by -2
5. Write a short explanation of the effects of the above operations. Did this affect the inequality sign? Was it still true? Why or why not?
2 answers
What about 2 and 3 how will I go about answering those?
1 answer