Answer:
a) x+3x/2y or (3x+2xy)/2y
b) b^12
c) 4^3 or 64
Step-by-step explanation:
What they are in the absolute symbols ( |x| ) the number is always positive
1. |y|= 5
2. |y|= 3
First, set up what you know. Twice the sum of a number and seven means: 2x+7. Three times the difference of the number and 8 is 3(x-8).
Set both of them equal to each other and you'll get this:
2x+7 = 3(x-8)
Afterwards just follow through with algebra.
2x+7 = 3x - 24
2x + 31 = 3x
31 = 3x - 2x
31 = x
Afterwards check your work to see if it is correct.
2(31) + 7 = 3( 31 - 8 )
62 + 7 = 3(23)
69 = 69
