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olga55 [171]
2 years ago
15

Simplify and evaluate without a calculator. 3*(m-4)-n*(m-4) if m=5 and n=3

Mathematics
2 answers:
il63 [147K]2 years ago
8 0

Answer:

Step-by-step explanation:

If m = 5 and n = 3, then

3*(m-4)-n*(m-4) becomes 3*(5 - 4) - 3(5 - 4), or 3(1) - 3(1) = 0

Another way to do this would be to factor out m - 4 first.  We get:

(m - 4)(3 - n), and substituting the given values for m and n results in

5(3 - 3) = 0 (as before).

Katarina [22]2 years ago
6 0

Answer:

0

Step-by-step explanation:

3*(m-4)-n*(m-4)   m = 5, n = 3

3*(5-4)-3*(5-4)

3*(1)-3*(1)

3-3

0

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UNO [17]

\\ \bull\tt\dashrightarrow \dfrac{-3}{8}x-20+2x>6

\\ \bull\tt\dashrightarrow \dfrac{-3}{8}x+2x=6+20=26

\\ \bull\tt\dashrightarrow \dfrac{-3+16}{8}x=26

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#27

\\ \bull\tt\dashrightarrow 0.5x-4-2x\leqslant 2

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\\ \bull\tt\dashrightarrow x\leqslant 4

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