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