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Prove 16 + 3x - (7x
Prove 16 + 3x - (7x + 4) = -4(x - 3)
Statement | Reason |
---|---|
16 + 3x - (7x + 4) = | Given |
16 + 3x - 1(7x + 4) | Identity Property of Multiplication |
16 + 3x + (-1)(7x + 4) | Definition of Subtraction |
16 + 3x + (-7x) + (-4) | Distributive Property |
16 + (-4) + 3x + (-7x) | Commutative Property of Addition |
12 + (-4x) | Addition |
-4x + 12 | Commutative Property of Addition |
-4(x - 3) | Distributive Property |