Question

решите уровнение 7 7/30-(5 11/30-y)=3 19/30 2) (х-1 9/17)+2 14/17=5 5/17 плииз помогите

Answer 1

7 7/30 - (5 11/30 - у) = 3 19/30
5 11/30 - у = 7 7/30 - 3 19/30
5 11/30 - у = 6 37/30 - 3 19/30
5 11/30 - у = 3 18/30
у = 5 11/30 - 3 18/30
у = 4 41/30 - 3 18/30
у = 1 23/30

(х - 1 9/17) + 2 14/17 = 5 5/17
х - 1 9/17 = 5 5/17 - 2 14/17
х - 1 9/17 = 4 22/17 - 2 14/17
х - 1 9/17 = 2 8/17
х = 2 8/17 + 1 9/17
х = 3 17/17
х = 4