A number decreased by 30 is the same as 14 decreased by 3 times the number. Find the number. Explain!
Answers (2)
x-30 = 14-3x
= x=44-3x
=4x=44
=x=11
The number is 11, because I did algebra. Simply, I added 30 to "x-30" to cancel out the 30, so now it's 0.
To make both sides even, add 30 to the other side.
Add 3x to "44-3x" to make cancel it out.
Make it even, as before.
Since 4x is the same as 44, 44 divide 4 is 11.
Thank you for the correction.
sorry for smartassing but
-19 = -19