is this helpful?
Let me know the website I used was Desmos graphing calculator
OK.
-- Since it's the difference of two squares,
the factored form of that expression is
(5x + 12) (5x - 12) .
-- We don't know the value of the expression
until you tell us the value of 'x'. And then, if
'x' changes, the value of the expression also
changes, immediately, without any delay.
Faster than the speed of light.
I thiink its stocks. i hope that helps a little bit :/
X=20
3(x-1)-8=4(1+x)+5
1. Distribute
3x-3-8= 4+4x+5
2. Combine like terms
3x-11=4x+9
3. Add 11 or subtract 9 to both sides
3x-11+11=4x+9+11
or
3x-11-9=4x+9-9
3x=4x+20
or
3x-20=4x
If you did the first step then you subtract 4x from both sides
3x-4x=4x+20-4x
-x=20
Then you would divide by a negative 1 because there is an imagery 1 in front of the x.
-x/-1=20/-1
x=-20
If you did the second way then you would subtract 3x from both sides
3x-20-3x=4x-3x
-20=x
And you get the same answer for both ways
