Question

Find the value of x so that (5/7)2x +1=[(3/4)3]3

Answer 1

$\large\bf\underline{Answer:-}$

$\frac{5}{7} \times 2x + 1 = (\frac{3}{4} \times 3) \times 3 \\ ⟹\frac{10x}{7} + 1 = \frac{9}{4} \times 3 \\⟹ \frac{10x + 7}{7} = \frac{27}{4} \\ ⟹ 40x + 42= 189 \\ ⟹40x = 189 - 42 \\ ⟹40x = 147 \\ ⟹x = \frac{147}{40} \\⟹ x = 3.675$

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