Mathematics
maddiearkless
20

Solve the system of equations. Show ALL your work. Put your answer in the form of an ordered pair (x, y) -4x + 11y = 15 x = 2y

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(1) Answers
rekeyia21

This should be easy because we just have to use substitution method. Substitute the value of x from the second equation into the x of the first equation.                           -4(2y) + 11y = 15                          -8y + 11y = 15                                    3y = 15   ; y = 5 Substitute this value of y to either the first or second equation.                                         x = 2(5) = 10 The ordered pair is therefore (10,5).

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