Question

solve the following equations and verify your answer :-

please tell me the Answer.​...
tell me only math sum ​

Answer 1

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Step-by-step explanation:

Given, 3y+4=5y−4

⟹ 4+4=5y−3y ...[Transposing x terms to one side]

⟹ 8=2y ...[On simplifying]

⟹ y=

2

8

...[Dividing 2 on both sides]

⟹ y=4.

Hence Varified

Answer 2

$1) \frac{1.2x + 3}{3.2x + 6} = \frac{9}{8}$

$8(1.2x + 3) = 9(3.2x + 6)$

$9.6x + 24 = 28.8x + 54$

$9.6x - 28.8x = 54 - 24$

$- 19.2x = 30$

$x = \frac{30}{ - 19.2}$

$x = 1.5625$

$2) \: \: \frac{2}{x + 9} = \frac{ - 7}{4x - 3}$

$2(4x - 3) = - 7(x + 9)$

$8x - 6 = - 7x - 63$

$8x + 7x = - 63 + 6$

$15x = - 57$

$x = \frac{ - 57}{15}$

$x = - 3.8$

$3) \: \: \frac{2 + 3y}{1 + 5y} = \frac{4}{3}$

$3(2 + 3y) = 4(1 + 5y)$

$6 + 9y = 4 + 5y$

$6 - 4 = 5y - 9y$

$2 = - 4y$

$y = \frac{ - 4}{2}$

$y = - 2$