Question

Simplify: –4(x – 6) + 3(a – 7)
(Points : 1)
–4x + 3a – 45
–4x + 3a + 45
–4x + 3a – 3
–4x + 3a + 3

Answer 1

–4(x – 6) + 3(a – 7)
We need to distribute to simplify.
-4(x - 6) Starting with the first part.
-4 * x = -4x
-4 * -6 = 24 ( 2 negatives = a positive)
So, the first part is -4x + 24.
3(a - 7) Second part now.
3 * a = 3a
3 * -7 = -21
Second part is 3a - 21.
Putting them together.
-4x + 24 + 3a - 21
Combine like terms.
-4x + 3a + 3 <--- Answer.