Answer:
-5
Step-by-step explanation:
12-5=7
Complete Question:
Solve the equation for x

Answer:

Step-by-step explanation:
Given

Required
Solve for x

Add 7 to both sides



Hence:
For
, 
Answer:
ok
Step-by-step explanation:
Answer:
Part A: A
Part B: A
Step-by-step explanation:
1)
the inequality should be less than or equal to, since we need to find how many are left
now, the answer B is wrong, since there can't be negative 56, since Xander collected some cans, though he still must collect a few
thus, the answer is A
2)
A again is correct, since it represents:c ≤ 56
B represents c ≥ 56
C represents c ≤ –56
D represents c ≥ -56