Question

(1,8x - 1,9) - (2,7x - 3,7) = 2,1x Решите плес, оч надо)

Answer 1

1.8х-1.9-2.7х+3.7=2.1х
1.8х-2.7х-2.1х=-3.7+1.9
-3х=-1.8
х=0.6

Answer 2

1.8x-1.9-2.7x+3.7=2.7x
0.9x+1.8=2.7x
0.9x-2.7x=-1.8
-1.8x=-1.8
x=-1.8/(-1.8)
x=1

ответ:1