Question

{10(8-a+a)+a}-{10a+(8-a)}=18​

Answer 1

Answer:

a=7

Step-by-step explanation:

{10(8-a+a)+a}-{10a+(8-a)}=18

or, {80-10a+10a+a}-{10a+8-a}=18

or, 80+a-10a+8-a=18

or, 80+8-10a=18

or, 88-10a=18

or, 10a=88-18

or, 10a=70

or, a=70/10

or, a=7