1395.
1)2(8+3а)+7(а-1)=16+6а+7а-7=9+13а=
9+13•7=9+91=100; 9+13•5=9+65=74
2)9(2b+3)+5(2-b)=18b+27+10-5b=13b
+37=13•1+37=50; 13•3+37=39+37=76
3)7(5c+2)+3(1-c)=35c+14+3-3c=32c+
17=32•5+17=160+17=177; 32•0+17=17
4)8(5+3d)+4(3-2d)=40+24d+12-8d=
16d+52=16•3+52=48+52=100; 16•4+
52=64+52=116