Question

solve it ....... ....by substituting​

Answer 1

Step-by-step explanation:

x/2-10 =1/2

x/2 - 20/2 =1/2

x/2=21/2

x=21

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Answer 2

Answer:

x/2-10 = 1/2

=> x/2-20/2 = 1/2

=> x/2=21/2

x = 21

I think it's help you a lot,,,,,