Math, asked by navneet242322004, 8 months ago

5. Solve
(a) 6(3x + 1) - 3(4x - 2) = 2(x - 5) = 3(2x - 2)
(b) 3(x - 2) - 2x - 3) = 4(x - 5) + 5(x - 8)
(c) 7(2t - 3) + 2(3t + 2) = t + 5
2
(d) 12 - (2x - 5) + 3x = 5.
3​

Answers

Answered by sakshisingh27
6

Step-by-step explanation:

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Hope u like my process.

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1. 6 ( 3x + 1 ) - 3 ( 4x - 2 ) = 2 ( x - 5 ) - 3 ( 2x - 2 )

⇒ 18x + 6 - 12x + 6 = 2x - 10 - 6x + 6

⇒ 18x - 12x + 6 + 6 = 2x - 6x -10 + 6

⇒ 6x + 12 = -4x - 4

⇒ 6x + 4x = -4 - 12

⇒ 10x = -16

⇒ x= -16 ÷ 10

∴ x = -1.6 = -8/5

2. 3 ( x - 2 ) - 2 ( x - 3 ) = 4 ( x - 5 ) + 5 ( x - 8 )

⇒ 3x - 6 - 2x + 6 = 4x - 20 + 5x - 40

⇒ 3x - 2x - 6 + 6 = 4x + 5x -40 - 20

⇒ x = 9x - 60

⇒ x - 9x = - 60

⇒ -8x = -60

⇒ x = -60 ÷ ( - 8 )

∴  x = 7.5 = 15/2.

3. 7 ( 2t - 3 ) + 2 ( 3t + 2 ) = t + 5

⇒ 14t - 21 + 6t + 4 = t + 5

⇒ 14t + 6t + 4 - 21 = t + 5

⇒ 20t - 17 = t + 5

⇒ 20t - t = 5 + 17

⇒ 19t = 24

∴  t = 24/19.

4. 12 - ( 2/3 ) ( 2x - 5 ) + 3x = 5

⇒ 12 - ( 4x/3 ) + ( 10/3 ) + 3x = 5

        36 - 4x + 10 + 9x

⇒  ---------------------------------------  = 5

                       3

              46 + 5x

⇒ ----------------------------  = 5

                  3

⇒ 46 + 5x = 5 × 3

⇒ 46 + 5x = 15

⇒ 5x = 15 - 46

⇒ 5x = -31

∴  x = -31/5 = - 6.2

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