Уравнение: 9 7/10x - (2 3/10x + 6 2/5x) + 1 2/5 = 7 9/10

Question

Уравнение:
9 7/10x - (2 3/10x + 6 2/5x) + 1 2/5 = 7 9/10

Answer 1

9,7х-(2,3х+6,4х)+1,4=7,9
9,7х-2,3х-6,4х+1,4=7,9
х=6,5