Math, asked by asimdutta0910, 2 months ago

21 - 3 ब्रैकेट - 7 ब्रैकेट क्लोज इक्वल टू ए प्लस 20

Answers

Answered by harshitha202034

1

Answer:

$21 - 3( - 7) = a + 20 \\ 21 - ( - 21) = a + 20 \\ 21 + 21 = a + 20 \\ 42 = a + 20 \\ 42 - 20 = a \\ \underline{ \underline{ 22}} = a$

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