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Mathematics 31 Online
OpenStudy (anonymous):

HELP IS APPRECIATED !!!!The steps in the simplification of the expression 46 + 7x + 4y −2x – y − 27 are shown below. Step 1: 46 – 27 + 7x − 2x + 4y − y Step 2: (46 − 27) + (7x − 2x) + (4y − y) Step 3: 19 + x (7 − 2) + y (4 − 1) Step 4: 19 + x (5) + y (3) Step 5: 19 + 5x + 3y

OpenStudy (anonymous):

Which statement is correct? Step 1 uses commutative property of addition, and step 5 uses commutative property of multiplication. Step 4 uses associative property of multiplication, and step 3 uses simplification. Step 2 uses associative property of addition, and step 5 uses simplification. Step 1 uses distributive property of addition, and step 3 uses distributive property of multiplication.

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