Just use pemdas : parenthisis, exponents, multiplication, division, addition, and subtraction. Do the exponents first before you multiply.
It’s AE, CG, EF, and GF. Hope this helps
Answer:
a. Andrea is incorrect
b. By solving for x, we find that x does not equal 8, but it is equal to 7.
Step-by-step explanation:
8+4=2(x-1)
8+4=2x-2
12=2x-2
14=2x
x=7
This expression can't be simplified algebraically. The most you can do is to feed it to some calculator, to obtain