Question

9th grade math
(01.07)

Solve 3c + 4 = −20. (1 point)

−5.3
6
8
−8

Answer 1

Isn't the answer 8?

Answer 2

This is actually really simple. You have to isolate c. Start like this:
3c + 4 = −20
3c + 4 - 4 = -20 - 4
?

Answer 3

OK, let me check:
3c + 4 = -20
3c + 4 - 4 = -20 - 4
3c = -24
3c/3 = -24/3
c = -8

Answer 4

Oh, Forgot to keep it negative. Can you help me with another?

Answer 5

Sure! just open it in another question, okay?

Answer 6

k