ALGEBRA
SIMPLIFY
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SOLUTION
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Answer:
x-1
Step-by-step explanation:
⇒1-[1-x-{-1-x+(-1+x+1)}]
⇒1-[1-x-{-1-x-1+x+1}]
⇒1-[1-x+1+x+1-x-1]
⇒1-1+x-1-x-1+x+1
⇒2-3+2x-x
⇒x-1
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