2x - (7 + x) < x = Solve inequality for x?

2008-10-20 6:59 am

Express answer in interval notation. Show algebraic steps.

回答 (6)

2008-10-20 7:07 am

✔ 最佳答案

2x - (7 + x) < x Distribute the negative

2x -7 -x < x Bring the x's together

x - 7 <x

-7 <0
This means it is the x's are all real

👍 0 👎 0

2008-10-20 6:57 pm

2x - (7 + x) < x
2x - 7 - x < x
2x - x - x < 7
0 < 7
(infinite solutions)

👍 0 👎 0

2008-10-20 4:00 pm

x - 7 < x
Solution ?

👍 0 👎 0

2008-10-20 2:07 pm

2x - (7 + x) < x

2x-7-x < x
x-7 < x
x-x < 7

the solution doesn't exist

👍 0 👎 0

2008-10-20 2:07 pm

that s clear
x=R(all the number except C)

👍 0 👎 0

2008-10-20 2:04 pm

x - 7 < x
-7 < 0
So, the solution for x is all real numbers.

👍 0 👎 0