Question

(-3,16в)+6,28-5,64в-0,8в-9

Answer 1

-3.16в+6.28-5.64в-0.8в-9=0
(-3.16-5.64-0.8)в +(6.28-9)=0
-9.6в-2.72=0
-9.6в=2.72
в=-2.72/9.6

Answer 2

спасибо