Question

please give correct answer


with full explation



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Answer 1

Step-by-step explanation:

Solution :-

(a)

Given that :

5 - 3 ( 5x + 2 ) = 4 ( 7 - 3x ) + 1

→ 5 - 15x - 6 = 28 - 12x + 1

→ - 15x - 1 = - 12x + 29

→ - 15x + 12x = 29 + 1

→ -3x = 30

→ x = 30 / -3

→ x = - 10

The vue of x = - 10

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(b)

Given that :

[ (6x+1) / 3 ] + 1 = ( x - 3 ) /6

→ ( 6x + 1 + 3) / 3 = ( x - 3 ) /6

→ ( 6x + 4 ) / 3 = ( x - 3) / 6

→ 6x + 4 = ( x - 3) / 2

→ 2 ( 6x + 4 ) = x - 3

→ 12x + 8 = x - 3

→ 12x - x = - 3 - 8

→ 11x = - 11

→ x = - 11/11

→ x = -1

The value of x = -1

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(c)

Given that :

(x+1)/(2x+3) = 3/8

On applying cross multiplication then

→ 8(x+1) = 3(2x+3)

→ 8x + 8 = 6x + 9

→ 8x - 6x = 9 - 8

→ 2x = 1

→ x = 1/2

The value of x = 1/2

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(d)

Given that :

0.3(6-x) = 0.4(x+8)

→ 1.8 - 0.3x = 0.4x + 3.2

→ -0.3x - 0.4x = 3.2 - 1.8

→ - 0.7x = 1.4

→ x = 1.4 / -0.7

→ x = (14/10)/(-7/10)

→ x = 14/-7

→ x = -2

The value of x = -2

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