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In-s [12.5K]
3 years ago
10

Solve the system of equations using multiplication. 3x – 3y = –3 5x – y = –13 What is the solution of the system?

Mathematics
1 answer:
love history [14]3 years ago
6 0

ANSWER

The solution is

x=-3,y=-2

EXPLANATION

First equation

3x – 3y = –3

Second Equation:

5x – y = –13

Multiply the second equation by 3 to get:

Third equation:

15x-3y=-39

Subtract the first equation from the third equation:

15x - 3x =  - 39 -  - 3

12x =  - 36

Divide both sides by 12,

x =  \frac{ - 36}{12}  =  - 3

Put x=-3 into the first equation:

3( - 3) - 3y =  - 3

- 9  - 3y =  - 3

Group like terms,

- 3y =  - 3 + 9

- 3y = 6

y =  - 2

The solution is

x=-3,y=-2

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Ganezh [65]

Answer:

The values of a and b are 33 and \frac{20\sqrt{3}}{3}, respectively.

Step-by-step explanation:

The statement is equivalent to the following mathematic expression:

\left(5 + 2\sqrt{2})^{2} = a + b\cdot \sqrt{6} (1)

By definition of the perfect square trinomial:

25 + 20\cdot \sqrt{2} + 8 = a + b\cdot \sqrt{6}

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And by direct comparison we have the following system:

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By (3), we solve for b:

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Write the equation of the line that is perpendicular to the liney=-1x/ 3 + 2 and goes through the point (5, 6)
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Answer:

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Step-by-step explanation:

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3 0
3 years ago
You have prizes to revea
MissTica

Answer:

Yes

Step-by-step explanation:

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The range is {0,16}

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See attachment for mapping diagram.

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