Emorej22
04.06.2021 •
Mathematics
Does anyone know how to solve this?
Solved
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Ответ:
Answer
–3x + 3y = 6
Explanation
We need to simplify each expression to see which one is similar to x – y = –2.
–3x + 3y = 6
multiply by 1/3 on both sides.
1/3( –3x + 3y) = 6 × 1/3
⇒ -x + y = 2
Multiply by -1 on both sides.
-1( –x + y) = 2 ×-1
⇒ x - y = -2