( p + q + r ) + ( p - q + r )
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Step-by-step explanation:
p+q+r+p-q+r
2p+2r
2(p+r)
Answered by
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Answer:
= ( p + q + r ) + ( p - q + r)
= p + q + r + p - q + r
= 2p + 2r
= 2( p + r )
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