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

Answer 1

Kennedy Adams

#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#

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Answer 2

Hazel Anglin

#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#

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Answer 3

Genesis Allen

To simplify R - S + T, substitute the given expressions for R, S, and T into the expression and then combine like terms.

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

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.