48 - (-12)
48 + 12 simplify brackets. (because two negatives equals a positive)
60 << answer
hope this helps, God bless!
[ Answer ]
<u><em>5x - 5</em></u>
[ Explanation ]
<em><u>Remove Parenthesis:</u></em>
7x + 4 - (2x + 9)
- (2x + 9) : -2x - 9
= 7x + 4 -2x - 9
<u><em>Simplify:</em></u>
7x + 4 - 2x - 9 : 5x - 5
= 5x - 5
<u><em><> Eclipsed <></em></u>
