Answer:
12
Explanation:
Given:
a = 2
b = 3
c = 4
d = 12
To evaluate the expression 6c - 4b, substitute the given values of c and b:
6c - 4b = 6(4) - 4(3)
Simplify the expression:
6c - 4b = 24 - 12
6c - 4b = 12
Therefore, when a = 2, b = 3, c = 4, and d = 12, the value of the expression 6c - 4b is 12.