Question

Ecuaciones:
5x + 3 = 2x +5?
5x + 3 = 4x +5?
3x + 7 = 7x +3?
2x + 6 = 4x +2?
4x + 5= 6x +3?
7x + 2 = 3x +6?

Answer 1

Respuesta:

$5x + 3 = 2x + 5 \\ 5x - 2x = 5 - 3 \\ 3x = 2 \\ x = \frac{2}{3}$

$5x + 3 = 4x + 5 \\ 5x - 4x = 5 - 3 \\ x = 2$

$3x + 7 = 7x + 3 \\ 3x - 7x = 3 - 7 \\ - 4x = - 4 \\ x = \frac{ - 4}{ - 4} \\ x = 1$

$2x + 6 = 4x + 2 \\ 2x - 4x = 2 - 6 \\ - 2x = - 4 \\ x = \frac{ - 4}{ - 2} \\ x = 2$

$4x + 5 = 6x + 3 \\ 4x - 6x = 3 - 5 \\ - 2x = - 2 \\ x = \frac{ - 2}{ - 2} \\ x = 1$

$7x + 2 = 3x + 6 \\ 7x - 3x = 6 - 2 \\ 4x = 4 \\ x = 1$