Step-by-step explanation:
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Answer:
(−a+b)(−c+d)
=(−a+b)(−c+d)
=(−a)(−c)+(−a)(d)+(b)(−c)+(b)(d)
=ac−ad−bc+bd
For the second one, what is the number before the x?
I think answer should be 18 please give me brainlest let me know if it’s correct or not okay thanks bye
Answer:
2x-y=11 is the standard form
Step-by-step explanation: