Given: Q = 7m + 3n, R = 11 - 2m, S = n + 5, and T = -m - 3n + 8, how do you simplify R - S + T?

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Answer 1 · 2018-07-26T18:16:39

$14 - 3 m - 4 n$ $14-3m-4n$

Given that

$R=11-2m, \ S=n+5$ & $T=-m-3n+8$

$\therefore R-S+T$

$=11-2m-(n+5)+(-m-3n+8)$

$=11-2m-n-5-m-3n+8$

$=14-3m-4n$

Answer 2 · 2018-07-26T18:18:05

$14-3m-4n$

$"Substitute the given values into the expression"$

$R-S+T$

$=11-2m-(n+5)+(-m-3n+8)$

$=11-2m-n-5-m-3n+8$

$=(11-5+8)+(-2m-m)+(-n-3n)$

$=14-3m-4n$