Answer:
No, they are not equivalent
Step-by-step explanation:

If you eliminate the parentheses, then add mq, you have
... y - p + mq = mx
Then dividing by m gives you the equation for x:
... x = (y - p + mq)/m
7/8 = 0.875
1. 7/8
2. 0.89
3. 0.99
You can write it
7 to 8
7:8
1cm³=1mL
1942cm=x mL
1cm³ 1942cm³
________ = ________
1mL x mL
Cross multiply
1x=1942
divide both sides by 1
x=1942mL
Answer=1942mL