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andriy [413]
3 years ago
13

3x+2y=-4 y= 4x-2 use substitution

Mathematics
2 answers:
Grace [21]3 years ago
4 0
(X,Y) = (0,-2)
Substitute the given value of y and x into the equation and simplify
lawyer [7]3 years ago
4 0

Answer: x = 0 and y = -2

Step-by-step explanation:

3x+2y=-4  ............................. equation 1

y=4x-2  ............................... equation 2

Using substitution method

substitute y=4x-2 into equation 1 , equation 1 then becomes

3x + 2(4x-2) = -4

3x+8x-4 = -4

11x-4=-4

add 4 to both sides

11x = 0

therefore:

x = 0

substitute x = 0 into equation 2 to find the value of y

y = 4x - 2

y = 4(0) - 2

y = -2

therefore:

x = 0 and y = -2

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The measure of each angles a,b and c are 32°, 74°  and 74°  respectively.

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Any three points determine a distinct triangle and a distinct plane in Euclidean geometry when they are non-collinear (i.e. a two-dimensional Euclidean space). To put it another way, each triangle is contained in a plane, and there is only one plane that includes that particular triangle. All triangles are contained in one plane if and only if all geometry is the Euclidean plane, however this is no longer true in higher-dimensional Euclidean spaces. Except as otherwise specified, the subject of this article is triangles in Euclidean geometry, more specifically, the Euclidean plane.

Let angle b be x

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To learn more about triangles  click on the link below:

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