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3 years ago

Simplify the expression. 3x-9y-5x-7y

Mathematics

2 answers:

Norma-Jean [14]3 years ago

7 0

$3x - 9y - 5x - 7y =\ \textgreater \ \\ 

( 3x + - 5x ) +( - 9y + - 7y ) =
 \\ \\ = - 2x - 16y 
 \\ \\ 
Good Luck$

emmasim [6.3K]3 years ago

5 0

3x - 9y - 5x - 7y

Combine like terms

( 3x + - 5x ) + ( - 9y + - 7y )

= - 2x - 16y

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Step-by-step explanation:

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so the speed to cover next 17 km = v+2

time taken to cover next 17 km is given by

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now total time t spent by the bicyclist to cover entire trip is given by

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Hence we will find the LCM of 18 and 20

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now we need to make both the denominator equal to 180

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