Question

решите уравнения (1/4+1/5)x=1,1/4; (2,1/12-1,5/6)x=3/4

Answer 1

(1/4+1/5)х=1 1/4
9/20х=1 1/4
х=1 1/4:9/20
х=5/4*20/9
х=2 7/9

(2 1/12-1 5/6)х=3/4
1/4х=3/4
х=3/4:1/4
х=3