Решите уравнения: 1)4L+5L+L=1200 2)6t+3t-t=6400

Question

Решите уравнения: 1)4L+5L+L=1200 2)6t+3t-t=6400

Answer 1

4l+5l+l=1200

10l=1200

l=1200/10

l=120

6t+3t-t=6400

8t=6400

t=6400/8

t=800