4 years ago

Math problem solving equation

1 answer:

8 0

The student didn’t make an error

Move variable to the left-hand side and change its sign

Move constant to the right-hand side and change its sign

Collect like terms -5a+2a= -3a
-3a=-9+12 Calculate the sum -9+12=3

-3a=3 Divide both sides of the equation by -3

And you should get a=-1
In my opinion

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