Question

para resolver las siguientes ecuaciones
7-3x=6x-20
3(x-6)=2(x-4)
X+2(3x+1)=3(x-2)


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Answer 1

Respuestas:

x = 3

x = 10

x = -2

Explicación paso a paso:

7 - 3x = 6x - 20

7 + 20 = 6x + 3x

27 = 9x

27/9 = x

3 = x

x = 3

3(x - 6) = 2(x - 4)

3x - 18 = 2x - 8

3x - 2x = -8 + 18

x = 10

x + 2(3x + 1) = 3(x - 2)

x + 6x + 2 = 3x - 6

7x + 2 = 3x - 6

7x - 3x = -6 - 2

4x = -8

x = -8/4

x = -2