Hey!
The first step to solving the rest of this problem would be to distribute the parenthesis in -( 5x - 10 ).
Original Equation :
-( 5x - 10 )
New Equation {Changed by Distributing the Parenthesis} :
- ( 5x ) - ( -10 )
Now we'll simplify the equation.
Old Equation :
- ( 5x ) - ( -10 )
New Equation {Simplified} :
-5x + 10
Okay, now that that part of the equation has been changed, we can add the simplified part to our entire equation.
New Equation :
5x - 9 - 5x + 10
Next we need to group like terms.
Old Equation :
5x - 9 - 5x + 10
New Equation {Changed by Grouping Like Terms} :
5x - 5x - 9 + 10
And now we add the similar elements.
Old Equation :
5x - 5x - 9 + 10
New Equation {Changed by Grouping Like Terms} :
-9 + 10
And finally we simply add the numbers.
Old Equation :
-9 + 10
Solution {Old Equation Solved} :
1
So, this means that 5x - 9 - ( 5x - 10 ) is 1.
Hope this helps!
- Lindsey Frazier ♥
