what equation represent s "a number y decreased by 25 is 100
Mathematics · Middle School · Sun Jan 24 2021
Answered on
Given the expression:
a number y decreased by 25 is 100.
Determine the equation and the value of y.
Solution:
In order to determine the equation, we can simply write the values in a representation as,
y - 25 = 100
We've used the minus sign since the word decreased denoted the operation of subtraction.
Now in order to find for the value of y we can simply transpose - 25 to the other side of the equation, hence it must b taken to note that in transposing a number, the sign changes.
y - 25 = 100
y = 100 -25
y = 75
Final answer:
y - 25 =100
y = 75