-5,7:(-19)-0,8*(-4)+2,7:0,3+=12,5 помогите пожалуйста с решением!:(
Выражение: -5.7:(-19)-0.8*(-4)+2.7:0.3=12.5 Ответ: 0 Решаем по действиям: 1. 5.7:(-19)=-5.7/19 2. 5.7/19=0.3 5.70|1_9_ _ 5_7_ |0.3 0 3. -(-0.3)=0.3 4. 0.8*(-4)=-0.8*4 5. 0.8*4=3.2 X0.8 _ _4_ _ 3.2 6. 0.3-(-3.2)=0.3+3.2 7. 0.3+3.2=3.5 +0.3 _3_._2_ 3.5 8. 2.7:0.3=9 2.70|0_._3_ _ 2_7_ |9 0 9. 3.5+9=12.5 +3.5 _9_._0_ 12.5 10. 12.5-12.5=0 -12.5 _1_2_._5_ 00.0 Решаем по шагам: 1. -(-5.7/19)-0.8*(-4)+2.7:0.3-12.5=0 1.1. 5.7:(-19)=-5.7/19 2. -(-0.3)-0.8*(-4)+2.7:0.3-12.5=0 2.1. 5.7/19=0.3 5.70|1_9_ _ 5_7_ |0.3 0 3. 0.3-0.8*(-4)+2.7:0.3-12.5=0 3.1. -(-0.3)=0.3 4. 0.3-(-0.8*4)+2.7:0.3-12.5=0 4.1. 0.8*(-4)=-0.8*4 5. 0.3-(-3.2)+2.7:0.3-12.5=0 5.1. 0.8*4=3.2 X0.8 _ _4_ _ 3.2 6. 0.3+3.2+2.7:0.3-12.5=0 6.1. 0.3-(-3.2)=0.3+3.2 7. 3.5+2.7:0.3-12.5=0 7.1. 0.3+3.2=3.5 +0.3 _3_._2_ 3.5 8. 3.5+9-12.5=0 8.1. 2.7:0.3=9 2.70|0_._3_ _ 2_7_ |9 0 9. 12.5-12.5=0 9.1. 3.5+9=12.5 +3.5 _9_._0_ 12.5 10. 0=0 10.1. 12.5-12.5=0 -12.5 _1_2_._5_ 00.0