Question

31. 12) The solution of the
equation 2 x = x + 3 is:
a) x = - 3
b) x = 3
c) x =1/3
d) x = -1/3​

Answer 1

$\mathfrak\red{ To \: Find :-}$

The solution of the equation 2 x = x + 3 =?

☆$\textbf{Solving}$ ☆

⟹ 2x = x +3

⟹ x+3=2x

⟹ 2x-x = 3

⟹ x= 3

$\mathfrak\red{Hence\: here \:3\:is \: answer !}$

Answer 2

$a) \: \: \: 2( - 3) = - 3 + 3 \\ = - 6 \\ \\ b) \: \: 2(3) = 3 + 3 \\ 6 = 6 \\ = 0 \\ c) \: 2( \frac{1}{3} ) = ( \frac{1}{3} ) + 3 \\ ( \frac{2}{3} ) = \frac{1 + 3}{3} \\ ( \frac{2}{3} ) = ( \frac{4}{3} ) \\ d) \: \: 2( \frac{ - 1}{3} ) = \frac{ - 1}{3} + 3 \\ \: \frac{ - 2}{3} = \frac{ - 1 + 3}{3} \\ \frac{ - 2}{3} = \frac{2}{3} \\ = 0$

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