Question

evaluate the expression 3a + 2b - 6c when a = 10, b = 9, and c = 4

Explanation:

Step1: Substitute the values of a, b, c

Substitute \(a = 10\), \(b = 9\), and \(c = 4\) into the expression \(3a + 2b - 6c\).
We get \(3\times10 + 2\times9 - 6\times4\).

Step2: Calculate each term

Calculate \(3\times10 = 30\), \(2\times9 = 18\), and \(6\times4 = 24\).
So the expression becomes \(30 + 18 - 24\).

Step3: Perform the arithmetic operations

First, add \(30\) and \(18\): \(30 + 18 = 48\).
Then subtract \(24\) from \(48\): \(48 - 24 = 24\).

Answer:

24