Question

2(x+5)=x+20 comprobación

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Answer 1

2(x + 5) = x + 20

2x + 10 = x + 20

2x - x = 20 - 10

x = 10

comprobación

2(x + 5) = x + 20

2 ( 10 + 5) = 10 + 20

2 . 15 = 30

30 = 30