Twenty-five decreased by one fifth of a number is 18. Find the number.

35

Step-by-step explanation:

We have the following equation that represents the problem:

, where x is the answer we are looking for.

We can subtract both sides by 18:

add to both sides:

multiply both sides by 5:

.

Here, x = 35

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

boxplot e is the answer