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Three times a number decreased by the sum of seven times the number and 12 is equal to twice the difference of the number and 3

Respuesta :

chetankachana

Answer:

x = -1

Step-by-step explanation:

3x - (7x +12) = 2(x - 3)

3x - 7x - 12 = 2x - 6

-4x - 12 = 2x - 6

-12 = 6x - 6

-6 = 6x

x = -1

Check:

-1(3) - (-1(7) + 12) = 2(-1 - 3)

-3 - (-7 + 12) = -2 - 6

-3 - (5) = -2 - 6

-8 = -8

correct!

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-Chetan K

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