The equation in required form is: -x+2y = 12
Step-by-step explanation:
Given equation is:

In order to convert the equation in 
Multiplying both sides by 2

subtracting x from both sides

Hence,
The equation in required form is: -x+2y = 12
Keywords: Linear equation, slope
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Answer:
x=12
Step-by-step explanation:
Answer:
6) 7, 14, 28, 54 - geometric sequence
( multiplication with 2 )
7) 1000, 200, 40, 8 - geometric sequence
( division by 5 )
8) 7, 14, 21, 28 - Arithmetic sequence
( addition of 7 )
You can’t have a triangle with the given angles cause 140+70+186=396 while 180 must be the amount measure of all 3 angles