Question

Toate ex!
Mersi!
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Answer 1

j) x/2 - 12 = 13/24

12x/24 - 288/24 = 13/24

12x - 288 = 13

12x = 301

x = 301/12

l) x + 3/4 = 11/12

12x/12 + 9/12 = 11/12

12 x + 9 = 11

12 x = 3

4 x = 1

x = 1/4 => x = 0,25

n) 4/5 × x - 1/2 = 1/10

8x/10 - 5/10 = 1/10

8x - 5 = 1

8x = 6

4 x = 3

x = 3/4

x = 0,75

p) x : 3/2 = 8/9

x × 2/3 = 8/9

x = 8/9 : 2/3

x = 8/9 × 3/2

x = 4/3

r) 5/6 × x - 1 1/2 = 0,25

5x/6 - 3/2 = 1/4

(5x-9)/6 = 1/4

24 (5x-9)/24 = 6/24

24 (5x-9) = 6

120x - 216 = 6

120x = 222

60 x = 111

x = 111/60