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Whats the exspression equivalent to (-2x + 8.1y)

Whats the exspression equivalent to (-2x + 8.1y)-example-1
User Fandasson
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1 Answer

6 votes

Answer:

b. 7x + 2.8y

Explanation:

distribute the negative sign:

= -2x + 8.1 + -1(-9x + 5.3y)

= -2x + 8.1 + -1(-9x) + -1(5.3y)

= -2x + 8.1 +9x + -5.3y

combine like terms:

= (-2x + 9x) + (8.1 + -5.3y)

= 7x + 2.8y

User Tmaster
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