Question

1.|x| + 5 = 18
5 or –5
13 or –13
18 or –18
23 or –23
2. |x + 3| < 5
–8 < x < 2
–2 < x < 8
3 < x < 5
–3 < x < 5
3.|–3n| – 2 = 4
2 or –2
3 or –3
4 or –4
6 or –6
4.
|f| – 2/3 5/6
5/6 or -5/6
2/3 or -2/3
1 1/2 or -1 1/2
no solution

Please help? I suck at Equations and Inequalities

Answer 1

@Jessica_7897 Do you know how absolute value function is defined?

Answer 2

@ashish9277 I believe I know what absolute value is

Answer 3

ok
\[|x|+5=18\]
so
\[\pm x+5=18\]
Can you solve this from here?

Answer 4

x equals 13 or -13?

Answer 5

yes you're correct :D

Answer 6

Next is
\[|x+3|<5\]
Can you try this?

Answer 7

Is the answer –3 < x < 5?

Answer 8

1.x+5=18
x=13
2.x+3<5
x<3
3. 3n-2=4
3n=6
n=2
4.if it is |f| – 2/3 =5/6 then
f-2/3=5/6
f=2/3+5/6
f=4/6+5/6
f=11/6
f=1 5/6
hope it helps

Answer 9

1;13 or –13
2;-8<x<2 3;=-2,2 4;no solution

Answer 10

@robert2 Thank you so much!