Question

3I2x+4I-1=11

Answer 1

Im so-posed to Solve the absolute value

Answer 2

their are two unknown variable x &I ?

Answer 3

3|2x + 4| – 1 = 11

Answer 4

sorry i typed it wrong

Answer 5

is x =4/3 ??

Answer 6

@falkqwer2011 first add 1 and then divide both sides by 3.......tell me what u get.

Answer 7

4?

Answer 8

6x +4-1=11
6x+3=11
6x=11-3
6x= 8
x=6/8
x=3/4

Answer 9

4 is your right side.
u have |2x+4| on left side, isn't it ?
so your equation now is
|2x+4|=4.
do u know how to proceed further ?

Answer 10

sorry i dont

Answer 11

ok, let me tell u then.
if |x|=a, then x=a OR x=-a.
so here
|2x+4|=4 gives
(2x+4)=4 OR (2x+4)=-4
now can u solve these two easy equations and tell me the 2 values of x u get ?

Answer 12

-4

Answer 13

and 0

Answer 14

thats correct!
so u have solved it.
the solution of 3|2x+4|-1=11
is
0 OR -4.
(be careful, write OR and not AND)

Answer 15

ok thx so much :D

Answer 16

welcome :)