Question

Resuelva los siguientes ejercicios de ecuaciones de 1er grado * 2x + 5 = 9 * 3x + 7 = 2x – 4 *5x – 9 = 3x + 6 * x +2 = 7 * x – 4 = 3 * 2x = 12 * 3 = 5 prfavor es urgente

Answer 1

Respuesta:

$a)2x +5 = 9 \\ 2x = 9 - 5 \\ 2x = 4 \\ x = \frac{4}{2} \\ x = 2$

$b)3x + 7 = 2x - 4 \\ 3x - 2x = - 4 - 7 \\ x = - 11$

$c)5x - 9 = 3x + 6 \\ 5x - 3x = 6 + 9 \\ 2x = 15 \\ x = \frac{15}{2}$

$d)x + 2 = 7 \\ x = 7 - 2 \\ x = 5$

$e)x - 4 = 3 \\ x = 3 + 4 \\ x = 7$

$f)2x = 12 \\ x = \frac{12}{2} \\ x = 6$