Please tell how to solve (a), (b), (c) and (d) parts of this question.??

Dear Student
Solution to your question part (a) and (b) is given below for remaining questions please ask them in separate thread.
(a) -4(x+7) +7x = 8
=> (-4) × x +(-4) × 7 +7x = 8            [ + × - = - ]
=> -4x + (-28) + 7x = 8 
=> -4x -28 +7x= 8
=> (-4x+7x) = 8+28
=> 3x = 36 
=> x = 36/3 
=> x = 12

(b) 3(2x-1) - x = 12
=> 3 × 2x - 1 × 3 - x = 12         [ - × + = - ]
=> 6x - 3 - x = 12 
=> 6x - x = 12+3
=> 5x = 15
=> x = 15/5 
=> x = 3

Regards

  • 1
What are you looking for?