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Cordell Atkinson
Mathematics
13 November, 11:51
How to solve 4+|7-m|=5
+5
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1
)
Jacqueline Thompson
13 November, 11:55
0
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
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