SOLUTION: If 21 is added to a number, the result is 38 less than twice the number. Find the number

Algebra.Com
Question 989888: If 21 is added to a number, the result is 38 less than twice the number. Find the number
Answer by farohw(175)   (Show Source): You can put this solution on YOUR website!

We will use "x" to represent a number.

If 21 is added to a number --> (x + 21)
the result is 38 less than twice the number --> (= 2x - 38)

The equation:
x + 21 = 2x - 38

Solve,
x - 2x = -21 - 38
-x = -59 (divide both sides by -1)
x = 59 is the final answer.

If you plug x = 59 back into the equation both sides will be equal.





RELATED QUESTIONS

If 21 is added to a number, the result is 35 less than twice the number. Find the... (answered by josgarithmetic)
if 27 is added to a number, the result is 42 less than twice the number. find the... (answered by bluemockingjay7)
if 19 is added to a number the result is 37 less than twice the number, find the... (answered by rfer)
If 11 is added to a number, the result is 45 less than twice the number. Find the... (answered by advanced_Learner,addingup,stanbon)
if 15 is added to a number, the result is 56 less than twice the number. (answered by MathLover1)
if 17 is added to a number the result is 44 less than twice the... (answered by waynest)
if 72 is added to a number the result is 38 less than three times the... (answered by ewatrrr)
if 23 is added to a number, the result is 40 less than twice the number. what is the... (answered by JulietG)
If 72 is added to a number,the result is 38 less than 3 times the number fid the number.... (answered by josgarithmetic)