-7d = 50 + 2d
-9d = 50
d = -50/9
Or about -5.6
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The commutative property.
2 - 7d = -75 7d = 2 - (-75) 7d = 77 d = 77/7 d = 11
Which property is illustrated in this problem? (associative, distributive, identity, or commutative) 7d + 3 = 3 + 7d
2
3c-d