Question

5/2a-4/is greater than or equal to 15 solve

Answer 1

\[\frac{ 5 }{ 2 }a-4 \le 15\] is this your question?

Answer 2

no it's: \[5|2a-4| \ge15\]

Answer 3

I2a-4I<= 3
-3<2a-4<3
add 4 everywhere lol

-3+4<2a<3+4
1<2a<7

divide everywhere by 2
0.5< a< 3.5

Answer 4

what happens to the 5?

Answer 5

we divide both the sides by 5 initially

Answer 6

im confused :p how did you do it?

Answer 7

5|2a−4|≥15
just divide both the sides by 5
5 I2a-4I /5 => 15/5
I2a-4I=> 3

Answer 8

then you add 4?

Answer 9

correct :) so in the middle -4+4=0

Answer 10

so it becomes 2a>7 ?

Answer 11

@ghazi

Answer 12

no you are taking mods off so let say we have
IxI>4 then it will break like
-4<x<4

Answer 13

so what happens next then?

Answer 14

then you have the whole solution right up :D

Answer 15

whatt? dont you have to keep solve for a? :P

Answer 16

i have solved for a
a>0.5 , a<3.5

Answer 17

thank you! <3