Respuesta :
Answer:
x-11=-18
x=-7
Check work:
-7 -11 = -18
When both numbers are negative, you add them.
-7 "plus" -11 equals -18.
Answer:
The equation to represent the relationship "a number decreased by 11 is equal to -18 is x - 11 = -18. The value of x is -7
Solution:
From the question:
Given:
A number decreased by 11 is equal to -18.
That would be written as:
To Find the Number:
Assume the variable be X in its place
x - 11 = -18---------- (1)
Whenever it says "decreased by" a number, you know you are subtracting that number
Therefore from equation (1)
Now, to solve x - 11 = -18
x - 11 = -18
x=-18 + 11
x = -7
Hence the value of x is -7 Hence the equation to represent the relationship is x - 11 = -18
