3(x-5)=1+(5x+2x)
3x-15=1+7x
-15=1+7x-3x
-15=1+4x
-15-1=1+4x-1
-16=4x
-16/4=4x/4
-4=x
When mutiplying two negatives you will get a positive so answer A
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Hope this helps you
Answer:

Step-by-step explanation:
P(AUB) is P(A) + P(B) because P(AnB) is zero.
