Question

Решите уровнения х/2+х/6=10

Answer 1

$\dfrac{x}{2}+\dfrac{x}{6}=10\\ \\\dfrac{6x+2x}{2 \cdot 6}=10\\\dfrac{8x}{12}=10\\8x=10 \cdot 12=120\\x=120:8=15$

Answer 2

х/2+х/6=10
3х/6+х/6=10
4х/6=10
4х:6=10
4х=6*10
4х=60
х=60:4
х=15