Помогите плиз сделатьДам 15 баллов

0.4-x=0.36 -x=0.36-0.4 -x=-0.04 x=0.04 y+0.03=1 y=1-0.03 y=0.97 3.6-b=1.4 -b=1.4-3.6 -b=-2.2 b=2.2 a-3.2=0.8 a=0.8+3.2 a=4 3+x=4.3 x=4.3-3 x=1.3 b+0.03=0.23 b=0.23-0.03 b=0.2 4.2-y=0.2 -y=0.2-4.2 -y=-4 y=4 1.2+c=1.21 c=1.21-1.2 c=0.01 0.5+b=2.5 b=2.5-0.5 b=2 a+0.3=0.4 a=0.4-0.3 a=0.1 b-0.07=0.9 b=0.9+0.07 b=0.97 2.9-a=0 -a=-2.9 a=2.9 c-0.3=1.7 c=1.7+0.3 c=2 a-0.6=0.8 a=0.8+0.6 a=1.4