Question

ayuda, no se que hacer aqui :ccccc
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Answer 1

Respuesta:

• 2x = 4

x = 4/2

x = 2

• x + 7 = 3²

x + 7 = 9

x = 9 - 7

x = 2

• 2 + x - 5 = 12 + 3

2 - 5 + x = 15

-3 + x = 15

x = 15 + 3

x = 18

• 8x = x + 2

8x - x = 2

7x = 2

x = 2/7

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