Answer: -28
Variable/unknown - B
Numbers we know: -7 and 4.
How to solve: Use inverse division. The inverse of division is multiplication.
7 has a negative sign. However, 4 is positive.
N + P = N
P + N = N
Rules of integers:
- If both the signs of the two numbers are the same, it will be positive.
- If both the signs of the two numbers are different, it will be negative.
-7 is negative.
4 is positive.
Formula: N + P = N
-7 x 4 = -28
Final answer: -28
