Question

The given expression 2a 3b - c evaluates to -18 when a = 3, b = -4, and c = -2.

a) -10
b) -12
c) -14
d) -16

Answer 1

After substituting the values a = 3, b = -4, and c = -2 into the expression 2a + 3b - c, the result is -4, which does not match any of the provided options.

Step-by-step explanation:

The student is asking for the value of the expression 2a + 3b - c when certain values are given for a, b, and c. To find the answer, we substitute the provided values into the expression. So, with a = 3, b = -4, and c = -2, the expression becomes:

2(3) + 3(-4) - (-2) = 6 - 12 + 2 = -6 + 2 = -4.

However, since none of the given options (-10, -12, -14, -16) match our result of -4, it seems there might be a misunderstanding in the question as presented. Please double-check the values and the options provided.