Question

Please can someone help with this question.
Thanks

Answer 1

Answer:

let x be the price before the discount.

x - 35% of x = £ 78

=> x - 35x/100 = 78

=> x - 7x/20 = 78

=> 13x/20 = 78

=> x = 78*20/13

=> x = £120

price before discount is £120

Answer 2

Answer:

Step-by-step explanation:

Let x be the price before the discount

X-34% of x=£78

X-35x/100=78x-7x/20=78

13x/20=78

X=78×20/13x=£120

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