Question

Решите уравнения
1) 9/17-x/17=1
2)(x-6 5/12) ÷ 5/8 = 4
3) 3.5x + 2.8x + 3.7x =26.5

Answer 1

1) 9/17-х/17=1 /•17
9-х=17
х=17+9
х=26