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BartSMP [9]
3 years ago
14

Find the solution to the system 4x - y = -12 and -x - y = 3

Mathematics
2 answers:
RoseWind [281]3 years ago
7 0

Answer:

x = -3

y = 0

Step-by-step explanation:

4x - y = -12

-x - y = 3

__________--

5x = -15

x = -15/5

x = -3

-x - y = 3

-(-3) - y = 3

3 - y = 3

-y = 3 - 3

y = 0

rjkz [21]3 years ago
6 0

Answer:

Equation Form :  x=-3   y =0      

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A rectangle is 5 meters longer than its width. If the length is shortened by 2 meters and width is increased by 1 meter, the are
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Answer: Area = 6m²

              Smaller number = 16

              Hours = 9.6 h

Step-by-step explanation:

A rectangle is 5 meters longer than its width. If the length is shortened by 2 meters and width is increased by 1 meter, the area remains the same. Find the area of the rectangle.

1) w = x m                                2) w = x + 1 m

     l = x + 5  m                               l = x + 5 - 2 = x + 3 m

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workers                      hours

    16                              3

     5                               x

↑                                          ↓              inversely proportional

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