Question

Помогите решить срочно

Answer 1

-1.8у+4.14=-у+7.02
-1.8у+у=7.02-4.14
-0.8у=2.88
У=-3.6

Answer 2

-3(0,6y-1.38)=-y+7.02
-1.8y+4.14=-y+7.02
-1.8y+y=7.02-4.14
-0.8y=2.88
y=2.88/(-0.8)
y=-3.6