erica437
13.11.2019 •
Mathematics
What is 13.5=m+2.1 equal and how to solve
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Ответ:
m= 11.4
Step-by-step explanation:
13.5= m+2.1
Subtract 2.1 to both sides
13.5= m+2.1
-2.1 -2.1
11.4= m
Ответ:
Let the number = 10x+y
x+y = 9
y-x = 1
(x+y)+(y-x) = 9+1
2y = 10
y = 10/2
y = 5x+y = 9
9-y = x
x = 9 - 5
x = 4So, your number is 45... Hope this will help...