Question

alguien me ayuda a resolver esto doy corona​

Answer 1

$3x = 120 \\ \\ x = \frac{120}{3} \\ \\ \boxed{\bold{x = 40}} \\\text{comprobacion} \\ \\ 3(40) = 120 \\ \\ 120 = 120$

2.

$72 = 8x \\ \\ \frac{72}{8} = x \\ \\ \boxed{\bold{9 = x}} \\ \\ 72 = 8(9) \\ \\ 72 = 72$

3.

$5x = 35 \\ \\ x = \frac{35}{5} \\ \\ \boxed{\bold{x = 7}} \\ \\ 5(7) = 35 \\ 35 = 35$

4.

$420 = 6x \\ \\ \frac{420}{6} = x \\ \\ \boxed{\bold{{70 = x}}} \\ \\ 420 = 6 \times 70 \\ \\ 420 = 420$

$\text{SALUDOS}$