Question

Equação

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Answer 1

Resposta:

a) x - 3 = 7. | b) x + 4 = 10

x = 7 + 3 | x= 10- 4

x = 10 | x = 6

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C). | D)

x + 101 = 300 | x - 279 = 237

x = 300 - 101. | x = 237 + 27

x = 199. | x = 516

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e) x - 8 = -10. | f) x + 9 = -1

x = -10 + 8 | x = -1-9

x = -2. | x = -10

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g) 3x = 12 | h) 9x = 18

x=12/3 | x = 18/9

x = 4 | x = 2

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i) 35x = - 105. | j) 7x - 1 = 13

x = -105/35. | 7x = 13 + 1

| 7x = 14

| x = 14/7

| x = 2