Because one is negative and one is positive
Answer:
no lol :))))
Step-by-step explanation:
The correct answer is<span> 3. x-84=3x
That's because
</span>X/12 - 7 = x/4 is also (x-84)/7 = x/4 and when you cross multiply it you get (x-84)*4 = x * 7
4x-336=7x
-3x = 336
x = 336/-3
x = -112