Answer:
A, D
Explanation:
(1/4)(8x + 56) = 20
A.
(1/4)(8x + 56) = 20
Multiply both sides by 4.
8x + 56 = 80
56 + 8x = 80
Yes
B.
(1/4)(8x + 56) = 20
2x + 14 = 20
2x = 6
x = 3
The original equation has solution x = 3.
14 = 20 - 8x
8x = 6
x = 6/8 = 3/4
Solution is different.
No
C.
2x + 14 = 5
2x = -9
x = -9/2
Solution is different.
No
D.
2x = 6
x = 3
Solution is equal.
Yes