Question

resolva as equações

a)×+3=10

b)2×-10=5×+11

c)12×-10=5×+10

d)3×-3=6

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Answer 1

Resposta:

a) × + 3 = 10

x = 10 - 3

x = 7

b) 2× - 10 = 5× + 11

2x - 5x - 10 = 11

2x - 5x = 11 + 10

-3x = 11 + 10

-3x = 21

x = -7

c) 12× - 10 = 5× + 10

12x - 5x - 10 = 10

12x - 5x = 10 + 10

7x = 10 + 10

7x = 20

x = 20/7

d) 3× - 3 = 6

3x = 6 + 3

3x = 9

x = 3

Espero ter ajudado ✌❤!!!!!!