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How to solve 4+|7-m|=5
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3 votes
How to solve 4+|7-m|=5

User Roronoa Zoro
by
8.1k points

1 Answer

5 votes
when
|a|=b
assume
a=b and -a=b
so

4+|7-m|=5
minus 4 from both sides
|7-m|=1
assume
7-m=1 and
-(7-m)=1

7-m=1
minus 7 both sidees
-m=-6
times -1 both sides
m=6

-(7-m)=1
distribute
-7+m=1
add 7 to both sides
m=8

m=6 and 8
User Hasan Haghniya
by
8.5k points
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