Question

3x+9=-6

5x-3=57

-7x+6=-8

-9x-12=33

-8x+5=61

con comprovación porfabor ​

Answer 1

PASOS

3+9=-6

SIMPLIFICA

3+9:12

12=-6

LOS DOS LADOS NO SON IGUALES

Answer 2

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3x + 9 = -6

3x = -6-9

3x = -15

x = -5

Comprobación:

3(-5) + 9 = -6

-15 + 9 = -6

-6 = -6

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5x - 3 = 57

5x = 57+3

5x = 60

x = 12

Comprobación:

5(12) - 3 = 57

60 - 3 = 57

57 = 57

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-7x + 6= -8

-7x = -8-6

-7x = -14

x = 2

Comprobación:

-7(2) + 6 = -8

-14 + 6 = -8

-8 = -8

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-9x - 12 = 33

-9x = 33+12

-9x = 45

x = -5

Comprobación:

-9(-5) - 12 = 33

45 - 12 = 33

33 = 33

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-8x + 5 = 61

-8x = 61-5

-8x = 56

x = -7

Comprobación:

-8(-7) + 5 = 61

56 + 5 = 61

61 = 61

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