It is 4pi/7, or b. Just want to help ;)
Answer:
x=-5
Step-by-step explanation:

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Answer:
The expression –3 + 2x is equivalent to 2x – 3. I know it is equivalent because for every value of x that is substituted in, the two expressions simplify to the same value. I took the expression and used the commutative property to not change the value.
Answer:
A. a + b = 180 is the correct option.
Answer:
x={-1,1,3,5}
Step-by-step explanation:
x={-1,1,3,5}