2 years ago

Find the value of x Pleasee

Mathematics

1 answer:

Rina8888 [55]2 years ago

7 0

Answer:

x = 11

Step-by-step explanation:

10 10+ x

-------- = ------------

12 21

using cross products

12*21 = 12 *(10+x)

252 = 120 + 12x

subtract 120 from each side

252-120 = 120-120 + 12x

132 = 12x

divide by 12

132/12 =12x/12

11 = x

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