Question

–3(4–5y)+2(3–6y)=–3,9 Решите уравнение:

Answer 1

-12+5у+6-12у=-3.9
-7у=2.1
у=-0.3

Answer 2

-12+15у+6-12у=-3.9
-9у+6=-3.9
-9у=-3.9-6
-9у=-9.9
у=-9.9:(-9)
у=1.1