Question

Can someone help i have several questions like this i also need the work shown

Answer 1

x = 8

Explanation:

Create the expression:

10(x + 10) = 9(9 + 11)

Do PEMDAS (Parenthesis):

10(x + 10) = 9(20)

Do PEMDAS (Multiplication):

10x + 100 = 180

Cancel out:

10x + 100 = 180

-100 -100

10x = 80

Simpilfy:

x = 8