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Sheppard
Mathematics
30 December, 00:28
Y+z-yz; use y=7, and z=-7
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Leanna Blevins
30 December, 00:38
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49. 7+7-7*7 then equals 49
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Fisher
30 December, 00:53
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49
Step-by-step explanation:
Substitute all values into the expression.
7 + (-7) - (7 (-7))
=7-7+49
=49
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