6x+21+15-2x
4x+36
hope this helps...
Hello,
I would love to answer but there is no screenshot to see!
Answer:
word form: One hundred three million seven hundred twenty seven thousand four hundred and ninety five.
expanded form: 100,000,000+3,000,000+700,000+20,000+7,000+400+90+5.

=

Multiply both sides by 3
z + 6 =

Multiply both sides by 4
(4)z + 6 = (3)2z Simplify
4z + 24 = 6z Subtract 4z from both sides
24 = 2z Divide both sides by 2
12 = z Flip the sides to make it easier to read
z = 12