The equation that represents Karla's sentence is (4y = y + 15) and this can be determined by forming the linear equation.
Given :
Four times a number is equal to the number increased by 15.
The following steps can be used to determine the unknown number:
Step 1 - Let the unknown number be y.
Step 2 - According to the given data, the number is four times a number is equal to the number increased by 15 that means:
4y = y + 15
Step 3 - Further simplify the above expression.
3y = 15
Step 4 - Divide both sides by 3 in the above equation.
y = 5
The value of the unknown number y is 5.
For more information, refer to the link given below:
https://brainly.com/question/2096984
