Estimate the solution to the system of equations 2x+3y=6 -4x+3y=12

(x, y) = ( 1, 10/3)

Step-by-step explanation:

2x + 3y + 12

6 - 4x + 3y = 12

Simplify the equation:

2x + 3y = 12

-4x + 3y = 6

Multiply both sides by -1:

2x + 3y = 12

4x - 3y = -6

Eliminate one variable by adding the equations:

6x = 6

Divide both sides by 6:

x = 1

Substitute the value of x into the equation:

-4 x 1 + 3y = 6

Solve the equation:

y = 10/3

A possible solution:

(x, y) = ( 1, 10/3 )

Check the solution:

2 x 1 + 3 x 10/3 = 6 -4 x 1 + 3 X 10/3 = 12

Simplify the expression:

12 = 12 = 12

Easy way of saying it: The light waves from the stars look bluer than they should

Step-by-step explanation:

Hard way of saying it or more complex:

So, if a star is moving towards Earth, it appears to emit light that is shorter in wavelength compared to a source of light that isn't moving. ... In contrast, the light from a star moving away from us seems to shift towards longer wavelengths. As this is towards the red end of the spectrum, astronomers call it redshift.

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