A) The expression for the given number trick = 8(x + 7)
B) 8x + 56
Explanation:
A) Pick a number:
Let the number = y
Add 7:
it becomes = y + 7
Multiply by 8:
it becomes = 8(x + 7)
The expression for the given number trick = 8(x + 7)
B) We sipmlify the expression by opening the bracket:
8(x + 7) = 8 × x + 8×7
= 8x + 56
