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Number 3 please solve and explain

Number 3 please solve and explain-example-1
User Rogelio Em
by
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1 Answer

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Answer: -12.5

Explanation:

x(2y-3) and x=2.5 and y=-1

so you fix in the figures so it will turn to

2.5(-2-3)

so then you open the brackets with 2.5

-5-7.5

Answer: -12.5

User Kishor Velayutham
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5.2k points