Solve the following question
of simultancous equations by the elimination method.
7x+2y=24; &x+2y= 30 (please write all the steps)
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Answer:
x = (-1) and y = 15.5 or can also be written as 31/2
Step-by-step explanation:
7x + 2y = 24
x + 2y = 30
(-) (-) (-)
____________
(7x - x) + (2y- 2y) = 24 - 30
6x = -6
x = ( -1 )
Putting the value of x in 2nd given equation
x + 2y = 30
(-1) + 2y = 30
2y = 31
y = 31/2 = 15.5
x = (-1) and y = 31/2 that can also be written as 15.5
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