Question

найти корень уравнения 847 (3)

Answer 1

5( x - 1,5 ) = 4 2/3x - 8 3/14 
5x - 7,5 = 4 2/3x - 8 3/14 
5x - 4 2/3x = 7,5 - 8 3/14 
1/3x = 7 7/14 - 7 17/14
1/3x = - 5/7 
x = - 5/7 : 1/3 
x = - 15/7
x = - 2 1/7