Question

1)X+187÷11=21;
2)16×25-28x=612÷3;
3)27÷x+405÷9=48;
4)581÷83+51÷ x=24;
5)216÷x+16×18=324;
6)24x-345÷23=105;

Answer 1

1)X+187÷11=21;
x+17=21
x=21-17
x=4

2)16×25-28x=612÷3;
400-28x=204
-28x=204-400
28x=196
x=7

3)27÷x+405÷9=48;
27:x+45=48
27:x=3
x=9

4)581÷83+51÷ x=24;
7+51:x=24
51:x=24-7
51:x=17
x=3

5)216÷x+16×18=324;
216:x+288=324
216:x=36
x=6

6)24x-345÷23=105;
24x-15=105
24x=120
x=5