The lengths of the sides of a triangle are y, y+1, and 7 cm if the perimeter is 56 cm what is the value of y?

So first you combine all the equations and make them add up to 56.

The equation should look as such: 2y + 8 = 56

Then we solve for y

Work: 2y + 8 = 56

2y = 48

y = 24

I hope this helps!

y + y + 1 + 7 = 56

2y + 8 = 56

2y = 48

y= 24 (answer).

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9