Question

3x+6(x+1)=3(x+1)+5
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Answer 1

Olá

$\LARGE{}3x + 6(x + 1) = 3(x + 1) + 5 \\ \LARGE{}3x + 6x + 6 = 3(x + 1) + 5 \\ \LARGE{}3x + 6x + 6 = 3x + 3 + 5 \\ \LARGE{}\cancel{3x} + 6x + 6 = \cancel{3x} + 3 + 5 \\ \LARGE{}6x + 6 = 3 + 5 \\ \LARGE{}6x + 6 = 8 \\ \LARGE{}6x + 6 - 6 = 8 - 6 \\ \LARGE{}\LARGE{}6x \: \: \cancel{ + 6 - 6} = 8 - 6 \\ \LARGE{}6x = 8 - 6 \\ \LARGE{}6x = 2 \\ \LARGE{}6x \div 2 = 2 \div 6 \\ \LARGE{}\cancel{6}x \: \cancel{ \div 6} = 2 \div 6 \\ \LARGE{}x = 2 \div 6 \\ \LARGE{}x = \frac{2}{6} \\ \\ \LARGE{} \frac{\cancel{2}}{\cancel{6}} \div 2 \\ \\ \LARGE{}\LARGE\boxed{x = \frac{1}{3} }$

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