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3 years ago

Solve for x and y please ASAP it is urgent, please give a logical explanation, will rate highly and award brainliest.

Mathematics

1 answer:

Paladinen [302]3 years ago

5 0

Answer is (-1,-3)
Step by step explanation:
Solving for x:
-7x+5y=-8
Multiply both side’s by 8
-56x+40y=-64

9x-8y=15
Multiply both sides by 5
45x-40y=75

Subtract
-56x+40y=-64
45x-40y=75
-11x=11
-11x/-11 = 11/-11
x=1

Substitute -1 for x to get y
-7(-1)+5y=-8
Multiply 7 and -1
7+5y=-8
Then subtract 7 from both sides
5y=-15
Then divide both sides by 5
Y=-3

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Hey there mate ;)

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2 years ago

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scoray [572]

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4 years ago

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vitfil [10]

Hello,

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4 years ago

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snow_tiger [21]

Speed=distance / time
Data:
distance=240 m
time=6 s

Speed of this train=240 m / 6 s=40 m/s

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Data:

distance=560 m
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3 years ago

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