Question

solve this problem ​

Answer 1

Answer:

The value of X = 3.9

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Step-by-step explanation:

$\frac{x + 3}{2} + \frac{x - 9}{3} = \frac{7}{4} \\ \\ = = > \: \: \: \frac{3(x + 3) + 2(x - 9)}{6} = \frac{7}{4} \\ \\ = = > \: \: \: \frac{3x + 9 + 2x - 18}{6} = \frac{7}{4} \\ \\ = = > \: \: \: \frac{5x - 9}{6} = \frac{7}{4} \\ \\ cross \: multiply \\ \\ = = > \: \: \: 4(5x - 9) = 7 \times 6 \\ \\ = = > \: \: \: 20x - 36 = 42 \\ \\ = = > \: \: \: 20x = 42 + 36 \\ \\ = = > \: \: \: 20x = 78 \\ \\ = = > \: \: \: x = \frac{78}{20} \\ \\ = = > \: \: \: x = 3.9$

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