At Westonci.ca, we make it easy for you to get the answers you need from a community of knowledgeable individuals. Our platform connects you with professionals ready to provide precise answers to all your questions in various areas of expertise. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately.

How do I do this example 8(10a-4)+5a and 5a-12 are equivalent? Is she correct?

Sagot :

8(10a - 4) + 5a = 5a - 12
8(10a) - 8(4) + 5a = 5a - 12
80a - 32 + 5a = 5a - 12
80a + 5a - 32 = 5a - 12
85a - 32 = 5a - 12
-5a           -5a       
80a - 32 = -12
       +32    +32
       80a = 20
        80     80
           a = 1/4