If you provide more information then I could try to help :)
Answer:
<h2>x = -4 or x = -2</h2>
Step-by-step explanation:

You would multiply 4 by 72 then u multiply 4 * -6 then after that you would add 15
4/6 = 14/21
When using cross product always multiply the left fractions numerator times the right side fractions denominator and the left side fractions denominator times the right side fractions numerator
4×21 = 6×14
84=84
They are equivalent because they both equal 84
Answer:
the answer is b, 12
Step-by-step explanation:
16-4=12