First solve the first equation to find x.
x-5=2
x=7
Now plug it in to the other equation to get your answer.
6(7)-20
42-20
22
The answer is 22.
Answer:
Solution given;
a⁴-23a²b²+b⁴
making in the form of a²+2ab+b²
a⁴+2a²b²+b⁴-2a²b²-23a²b²
(a²+b²)²-(5ab)²
factoring by using formula
x²-y²=(x+y)(x-y)
<u>(a²+5ab+b²)(a²-5ab+b²)</u>
It is C. I did the Math.
Hope I helped!
Our goal is to get x by itself to find the value so
First we multiply 10 to both sides
S - 31 = 60
Then add 31 to both sides to get a
s = 91
Hope this helps!
2 1/5 is equivalent to 2 2/10. 2 2/10 + 1 1/10 is 3 3/10. C is the answer.