% change = (new value - old value)/(old value) * 100%
.. = (9.67 -9.74)/9.74 * 100%
.. = -0.07/9.74 * 100%
.. = -0.7%
The decrease is 0.7%.
There is so solution to this problem
Answer:
what is the answer choices?
Is this simultaneous equations?
if yes then the first step is
make one of the unknown as the subject
Distribute
10+4x+4+5
Combine like terms
19+4x
Final answer: 4x+19