You dived 14.28/4.2 by taking the decimal out and when you get the answer put it back
4x+30=2(x-10)
4x+30=2x-20
4x-2x= -30-20
2x= -50
x= -25
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The answer you selected is correct
3x - 4y = 16
3x = 4y + 16
x = 4y/3 + 16/3
Answer:
45 degrees
Step-by-step explanation:
All triangles equal 180 degrees so your just add the two existing angles which gets you 135 then you do 180-135, therefore giving you 45