Question

Me ajudem nessas equações

X/3 - 15 = 25

X/12 - 140 = 10 + 15

10-15 = x/2 + 150

Answer 1

Vamos la

$\frac{x}{3} -15 = 25 \\ \\ \frac{x-45=75}{3} \\ \\ x-45=75 \\ x=75-45 \\ x=30$

$\frac{x}{12} - 140 = 10 + 15 \\ \\ \frac{x-1680=120+180}{12} \\ \\ x=300+1680 \\ \\x=1980$

$10-15 = \frac{x}{2} + 150 \\ \\ \frac{20-30=x+300}{2} \\ \\ 20-30=x+300 \\ x=+300-20+30 \\ x=330-20 \\ x=310$