Answer:
x = -9
Step-by-step explanation:
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Firstly, you've got to expand the brackets, this becomes;
8a-4= -10a+ 50
You've then got to eliminate the -10a and you do this by adding 10a to both sides,
This then becomes 18a-4=50
You've then got to add 4, to eliminate this, which then becomes 18a=54
You've then got to divide both sides by 18, and this becomes 3.
Therefor, a=3
Hope this helps :)
The percent of decrease from 110 to 77 is:
D. 70% ( 110 x 700% =77)
Answer:
4+8=12
Step-by-step explanation:
