2 Resolva as equações
a) $\frac{3 x}{4} - \frac{2 x}{3} = \frac{1}{2}$

Answer

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Answer

$x = 6$

Steps

Step 1 ：Find a common denominator for the fractions: $lcm (4, 3) = 12$

Step 2 ：Multiply each term by the common denominator: $12 (\frac{3 x}{4} - \frac{2 x}{3}) = 12 (\frac{1}{2})$

Step 3 ：Simplify the equation: $9 x - 8 x = 6$

Step 4 ：Solve for x: $x = 6$

Step 5 ： $x = 6$