Question

Solve: |2n - 3| = 5
A. {-1, 4}
B. {1, 4}
C. {-1, 1}
D. {1, -4}

Answer 1

Hi :)

if there's, |a| = b, we write its as
a=b or a = -b

so what will you write with |2n-3| =5
?

Answer 2

what do you mean ?

Answer 3

like for example if we had
|9x+7| = 4

we would split it into 2 equations,

9x+7=4
or
9x+7 =-4

how would you split your equation?

Answer 4

2n - 3 = 5 or -5
when 2n-3 = 5
n=4
when 2n-3 = -5
n = -1

Answer 5

as |-5|=5
|5|=5

Answer 6

|2n-3| =5
|2n-3| =-5

Answer 7

no
the |2n-3| must be positive

Answer 8

oh :3

Answer 9

since you have already split the equation, there's no need to use |...| absolute sign
2n-3 =5
or
2n-3 =-5

solve these 2 independently

Answer 10

-1,4?

Answer 11

yes!

Answer 12

thank you guys so much for your time and help !!

Answer 13

you're most welcome ^_^