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goldenfox [79]
3 years ago
14

Find the solution to the system 5x+4y=-34 and y=3x

Mathematics
1 answer:
Lerok [7]3 years ago
3 0

Answer:

x = -2 ; y = -6

Step-by-step explanation:

Let y = 3x be eqn.1

So putting eqn.1 in 5x + 4y = -34 gives ,

5x + 4y =  - 34

=  > 5x + 4(3x) =  - 34

=  > 5x + 12x =  - 34

=  > 17x =  - 34

=  > x =  \frac{ - 34}{17}  =  - 2

Putting the value of x in eqn.1 gives :-

y = 3x = 3 \times ( - 2) =  - 6

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