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24-09-2021
Mathematics

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If 4x – 2y = -10 and 3x – 3y = -9, what is the value of x + y?

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KimYurii KimYurii

24-09-2021

Step-by-step explanation:

→ 4x ― 2y = ― 10 … ( 1 )

And,

→ 3x ― 3y = –9 … ( 2 )

Subtracting (2) from (1).

⠀⠀⠀4x ― 2y = ― 10

⠀⠀⠀3x ― 3y = ― 9

⠀⠀(-)⠀⠀(+)⠀⠀(+)

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⠀⠀⠀x + y = ― 1⠀⠀⠀⠀⠀⠀[Answer]

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