"decreased by" means "minus"
12 decreased by z means 12 - z
It really is that simple.
4 + 12
12 - m
6
Let the unknown number be x and so the expression is: x+12
The algebraic expression is: 15x-12
3x + 12 is an algebraic expression. An algebraic expression involves variables, constants or both.
12
It is: 4e/12 which can be simplified to e/3
It is y - 12.
4 + 12
12 - m
6
128
12/x
-(n/12)
The best algebraic expression for 7 x plus 12 -4 is 7x+8.
Let the unknown number be x and so the expression is: x+12