Please solve: x - 10 > 19?

Add 10 to both sides.
x>29

x - 10 > 19
x > 19 + 10
x > 29

x > 29

X - 10 > 19
Here if we do anything to one side the same thing must be done to the other side too. We want to find the X, means how X acts here, what are the values X can have and so on.

Then we need to keep only X in one side. So we should remove all the other values which combined with X. Here we have to remove 10, so will add another 10.

X - 10 + 10 >19....

but remember we have to do the same thing to the other side too.

X - 10 + 10 > 19 + 10

will carry on...

X > 29

OK. You got the answer. Now you know how does X act here.
X may be any digit that greater than 29 means 30 and up

x - 10 > 19
x > 19 + 10 = 29
x > 29
So x can be any number above 29.

all x's >29

x-10>19
x>19+10
x>29
So if x is a natural number or an integer or a odd number then
x={30,31,32,33,.............}
else if x is a real number then
x={x:x E R and x>29}
here E= element of
R =real numbers

if you move the 10 over, you get x > 29 good luck