Question

RESULTADO OPERACIÓN ECUACIÓN 5x + 4 =49 3 X + 1 = 31 7 X + 1 = 36 9 X + 1 = 91 12 x + 9 = 13​

Answer 1

RESOLUCIONES:

$5x + 4 = 49 \\ 5x = 49 - 4 \\ 5x = 45 \\ x = \frac{45}{5} \\ x = 9$

$3x + 1 = 31 \\ 3x = 31 - 1 \\ 3x = 30 \\ x = \frac{30}{3} \\ x = 10$

$7x + 1 = 36 \\ 7x = 36 - 1 \\ 7x = 35 \\ x = \frac{35}{7} \\ x = 5$

$9x + 1 = 91 \\ 9x = 91 - 1 \\ 9x = 90 \\ x = \frac{90}{9} \\ x = 10$

$12x + 9 = 13 \\ 12x = 13 - 9 \\ 12x = 4 \\ x = \frac{4}{12} \\ x =0,333....$