Question 1206405
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<font color=red>R = 11 - 2m</font>
<font color=blue>S = n + 5</font>
<font color=green>T = -m - 3n + 8</font>
Equation Q is never used.



<font color=red>R</font> - [ <font color=blue>S</font> + <font color=green>T</font> ]
<font color=red>R</font> - [ (<font color=blue>S</font>) + (<font color=green>T</font>) ]
<font color=red>11 - 2m</font> - [ (<font color=blue>n + 5</font>) + (<font color=green>-m - 3n + 8</font>) ]
11 - 2m - [ n + 5 -m - 3n + 8 ]
11 - 2m - [ -m-2n+13 ]
11 - 2m + m + 2n - 13 
-m + 2n - 2 



Or alternatively
<font color=red>R</font> - [ <font color=blue>S</font> + <font color=green>T</font> ]
<font color=red>R</font> - <font color=blue>S</font> - <font color=green>T</font>
<font color=red>(11-2m)</font> - <font color=blue>(n+5)</font> - <font color=green>(-m-3n+8)</font>
11-2m - n-5 + m+3n-8
-m + 2n - 2 



Final Answer: -m + 2n - 2 
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