Q7 of 107 Page 104

The solution of the equation 3x + 7 = – 20 is

Given 3x + 7 = – 20


⇒ 3x = –20 – 7


⇒ 3x = –27


On dividing the above equation by 3, we get


⇒ x = –9


Hence, the solution of the given equation is –9.

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