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Citrus2011 [14]
2 years ago
14

Margaret is solving the linear equation 3(x+4)=42 . As she was solving, she took the equation 3(x+4)=42 , performed an algebraic

operation and ended up with 3x+12=42 . Which algebraic property justifies this operation?
A) Multiplication Property of Equality
B) Division Property of Equality
C) Associative Property
D) Distributive Property
Mathematics
2 answers:
kramer2 years ago
7 0

Answer:

D

Step-by-step explanation:

The parenthesis was distributed in order to get 3x + 12

Varvara68 [4.7K]2 years ago
3 0

Answer:

D) Distributive Property

Step-by-step explanation:

3×x=3x

3×4=12

3x+12=42

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Answer:

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Step-by-step explanation:

so we have our two points, (-4,-1) and (-8,7) What we need to do to find our slope is y2 - y1 over x2 - x1. Once plugging in the numbers and subtracting it should give you 8/-4. 8 divided by -4 is -2. m = -2. Now to find our "b" we plug in our slope, and plug in one of the two points into the format of y = mx + b.

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