r/2-8
N/8
12+(16/x)
18 - 3n
write an expression for the phrase the proudut of there and a number decreased by twelve list the key words and wich opration they indicate.
3n-7
N/8
N/9
n/12. n=variable......stands for the number.
the + of a number and 10 k decreased by 4 = k-4
12+(16/x)
It can be: 7-4x as an algebraic expression
18 - 3n
If x is the unknown variable then it can be: x-16
Hi
Let x be the number and so it is: 3x-18
0.5
n = 5/(x + 12)