Реши уравнение 15,8-(2а +3,6)÷0,4=4,8
15.8-(2а+3.6)÷0.4=4.8 (2а+3.6)÷0.4=15.8-4.8 (2а+3.6)÷0.4=11 2а+3.6=11×0.4 2а+3.6=4.4 2а=4.4-3.6 2а=0.8 а=0.8÷2 а=0.4