Question

solve the first five problems

Answer 1

Answer: (i) x/3 - 6 = 5/2

=> x/3 = 5/2+6

by taking lcm,

=> x/3 = (5+12)/2

=> x/3 = 17/2

=>x = 17/2 × 3

=> x = 51/2 or x = 25.5

ii) 2x/3 - 3x/8 = 7/12

=> by taking lcm

=>  (16x - 9x)/24 = 7/12

=> 7x/24= 7/12

=>   x = 7/12 × 24/7

=> x = 2

iii) (x+2)(x+3) + (x-3)(x-2)- 2x(x+1)=0

=> [x(x+3)+2(x+3)]+[x(x-2)-3(x-2)]-2x(x+1)=0

=> x²+3x +2x + 6 + x² - 2x - 3x + 6 - 2x² - 2x = 0

=> 2x² - 2x² + 5x - 5x + 12

=> 0-0 +12 = 0

=. 12

iv) 1/10 - 7/x = 35

=> -7/x= 35 + 1/10

=> - 7/x = (350 +1) /10

=> -7/x= 351/10

=> 1/x= 351 / 10 × -1/7

=> 1/x = -351/70

=> x = -70/351

v) 13(x-4) - 3(x-9) - 5(x+4)=0

=> 13x-52 - 3x + 27 - 5x - 20 = 0

=> 13x-3x-5x + 52 +27-20=0

=> 5x + 59 =0

=> 5x = -59

=>x= -59/5

Step-by-step explanation: HOPE IT HELPS YOU

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