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Solve: 3x + 2 = 20 using inverse method.

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x = 16

x = 18

x = 20

x = 6

answer is A.

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Detailed Solution

Given:

3x + 2 = 20

Subtract 2 on both the sides, we get:

$\Rightarrow$ 3x + 2 - 2 = 20 - 2

$\Rightarrow$ 3x = 18

Divide 3 on the both the sides

$\Rightarrow$ 3x ÷ 3 = 18 ÷ 3

$\Rightarrow$ x = 6

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