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Substitute these values into each expression x=4 , y=7 ,z=2A. x + y + zb. 2x - y + 3zc. 4y + 2z - xd. x\2 + 7y + 5x

Answer»

A) 4 + 7 + 2 = 13

B) 2(4) - 7 + 3(2) = 8 - 7 + 6 = 7

C) 4(7) + 2(2) - 4 =21 + 4 - 4 = 21

D) 4/2 + 7(7) +5(4) = 2 + 49 + 20 = 71



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