Question

ecuación
3x-1=3+x

-(3+x)=5- {-6x-[2x-(3x1)(5x-7)] }
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Answer 1

Respuesta:

3x - 1 = 3 + x

3 x - x = 3 + 1

2x = 4

x = 4/2

x = 2

el otro es largo tarda

Answer 2

Explicación paso a paso:

3x-1=3+x

3x - x = 3 + 1

2x = 4

x = 4/2

x = 2

-(3+x)=5- {-6x-[2x-(3x1)(5x-7)] }

- 3 - x = 5 {- 6x - [2x - (15x^2 - 21x + 5x - 7)]}

- 3 - x = 5 {- 6x - [2x - 15x^2 + 21x - 5x + 7 ]}

- 3 - x = 5 {- 6x - 2x + 15x^2 - 21x + 5x - 7 }

- 3 - x = - 30x - 10x + 75x^2 - 105x + 25x - 35

- 30x - 10x + 75x^2 - 105x + 25x - 35 +x + 3 =

75x^2 - 180x + 25x + 3 =

75x^2 - 155x + 3