The two angles together form a straight angle, i.e. an angle of 180 degrees. This means that
Sum like terms:
Subtract 27 from both sides:
Divide both sides by 9:
Solve this system of linear equations. Separate the x- and y- values with a comma. 16x-5y=-28 8x-4y=-8
1 answer:
Answer:
(-3,-4)
Look at attached pictures for work and the text below for the explanation of the work. The brown numbers represent the step number it is.
Step-by-step explanation:
Start by getting either the x or y values in both equations the same number but opposite sign. Ex 16 and -16. I did x. Then add the equations eliminating one variable, in mine it was x, and the solve for the other variable, in mine it was y. Then plug that variable back into one of the two original equations and solve for the other variable, in mine I solved for x.
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