Aariyonago Aariyonago

Mathematics

Answered

3a) Solve using substitution.
y = - 2x
x + 2y = 9

Answer :

Анонимgo Анонимgo

Answer: Here is the step:

−2x;x+2y=9

x+2y=9

Then substitute -2x for y

-3x/-3 =9/-3

x= -3

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