Question

I have to fill in the blank but I need help on this one
x - 7 > 10
x>___

Answer 1

Solving inequalities is a lot like solving equations: Transpositions still work. Imagine if it were
\[\Large x-7 = 10\]
instead. You bring the -7 to the other side, but change its sign in the process. What do you get?

Answer 2

3?

Answer 3

:)
A common mistake. Just remember that when transferring terms between equations (or inequalities) Like say I want to transfer a +c from the left side to the right side...
\[\Large a \color{red}{+c}=b\]
We change its sign to negative.
\[\Large a = b\color{blue}{-c}\]

Answer 4

Same goes for negative-to-positive.

Answer 5

17?

Answer 6

That's right :)
Transfer the -7 from left-to-right, but the - becomes +
\[\Large x \color{blue}{-7}>10\]
\[\Large x > 10 \color{red}{+7}\]
\[\Large x > 17\]

Answer 7

ok thank you guys!!!

Answer 8

No problem :)

Answer 9

I need help on another one
6n-3 > -18
n>___