To express a number decreased by twice another number, you can use algebraic notation. Let’s say the first number is represented by ( x ) and the second number by ( y ). The expression would be written as ( x - 2y ), indicating that you take ( x ) and subtract twice the value of ( y ).
32 - 2x < 18
15 - 2x
Either 2*(n-4) = 2n - 8 or 2n - 4 It depends on whether the "twice" operates on "the number decreased by 4" or "the number".
60 - 2n
24
13
the number is negative two.
139
three times a number decreased by eleven
18
32-2x < 18
How do you write half a number decreased by 8 is equal to the sum of the number and 14