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victor77
30.07.2019 •
Mathematics
Solve the system of equations and choose the correct ordered pair. 2x + 6y = 6 3x – 2y = 20
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Ответ:
Multiply each equation by the value that makes the coefficients of xx opposite.(−3)⋅(2x+6y)=(−3)(6)(-3)⋅(2x+6y)=(-3)(6)(2)⋅(3x−2y)=(2)(20)(2)⋅(3x-2y)=(2)(20)Simplify.−6x−18y=−18-6x-18y=-186x−4y=406x-4y=40Add the two equations together to eliminate xx from the system.Divide each term by −22-22 and simplify.Tap for more steps...y=−1y=-1Substitute the value found for yy into one of the original equations, then solve for xx.Tap for more steps...x=6x=6The solution to the independent system of equations can be represented as a point.(6,−1)
Ответ:
solution is (6,-1)
Step-by-step explanation:
WE use elimination method to solve for x and y
Multiply the second equation by 3
------------------------------
Divide both sides by 11
Plug in 6 for x in first equation
divide both sides by 6
Ответ:
Step-by-step explanation:
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