Question

8. What is the solution to l + (-3) = 9?
A. 1=6
B. 1 = 12
C. 1 = -12
D. 1=-6

Answer 1

The answer is B

Step-by-step explanation: Pretty much you first +3 to cancel out the negative 3 also add 3 to 9 which is 12 then to check it -3 + 12 is 9

Answer 2

B. 1 = 12

i + (-3) is really just i - 3
i - 3 = 9
add 3 to both sides since the opposite of -3 is +3
you’re left with i = 12