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

#14-3m-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#