Question

Absolute value equation Can you help me?
|-4m|=64

|7c+3|=c-1

|a-4|-20=-3a
Thank you!

Answer 1

Can somebody help?

Answer 2

|-4m| = 64

4m = 64
m = ???

then consider -4m = 64

So you'll end up with two answers.

Answer 3

Your first question answer

|-4m| = 64 m can be minus or plus doesnt matter

so m=16 or m=-16

Second one

|7c+3|=c-1

c has to bigger than 1 if not equation will be not true

so 7c+3=c-1 when u look this equation c will be minus this is not possible so this question is not possible to solve

|a-4|-20=-3a

for a<4

4-a-20=-3a
-16=-2a
a=8 but a should be smallert than 4 so its not true

for a>4

a-4-20=-3a
4a=24
a=6 yes this is the what we are looking for

so the answer is 6