Question

10.[52: 13 x 100-5x (180 x 2-2•m)]:25=4

Answer 1

Răspuns:

[52: 13×100-5×(180×2-2•m)]:25=4

4×100-5×(360-2m)=4×25

400-5×(360-2m)=100

5×(360-2m)=400-100

360-2m=300:5

2m=360-60

m=300:2

m=150