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Gnom [1K]
3 years ago
7

Y=2x+ 2 y=x-1 how many solutions does the system of equations have​

Mathematics
1 answer:
snow_tiger [21]3 years ago
5 0

Answer below

x = -3

y = -4

Step-by-step explanation: First put the first equation in standard form and put the second equation in for y. 2x -1y = -2. 2x -1(x-1) = -2.

2x -1x + 1 = -2

1x+1=-2

1x = -3

x = -3

Put x (which is -3) back into the first equation originally before standard form(y=2x+2) to get y = 2(-3) + 2.

Which is -6+2=-4

so x = -3

and y = -4.

Hope this helps! :)

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Read 2 more answers
Write an equation: The sides of a rectangle are x and ( x - 4 ). The perimeter is 87
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The perimeter of a rectangle, is all of the sides added up.

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length = (x)

width = (x - 4)

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So just put these values into:  perimeter = 2 × width + 2 × length:

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_____________________________

Answer:

The equation is:       87 = 2(x) + 2(x - 4)

<em>(note: this can be simplified down like so:</em>

<em>87 = 2x + 2x - 8</em>

<em>87 = 4x - 8</em>

<em>95 = 4x</em>

23.75 = x    

)

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3 years ago
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