Question

Choose the correct one. The solution of the equation 3x + 7 = – 20 is (a) 17/7 (b) – 9 (c) 9 (d) 13/3

Answer 1

Hello here is your answer by Sujeet yaduvanshi ☝



Question:-3x + 7 = – 20

Solution:- 3x=-20-7

3x=-27

x=-27/3

x=-9

then

Correct answer=B

Answer 2

ANSWER
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$given \\ \\ 3x + 7 = - 20 \\ \\ = > 3x = - 20 \: - 7 \\ \\ = > 3x = - 27 \\ \\ = > x = \frac{ - 27}{3} \\ \\ = > x = - 9 \: \: \: \: ans \\ \\ \\ verification \\ - - - - - - \\ \\ = > 3x + 7 = - 20 \\ \\ = > 3 \times - 9 + 7 = - 20 \\ \\ = > - 27 + 7 = - 20 \\ \\ = > - 20 = - 20 \\ \\ hence \: verified$

ANS ) The correct option is (b) -9

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