I need some help;
Michelle solved this system of equations
using the elimination method:
5y=3x-2
-3y=x+18
Here is her work:
5y=3x-2
-3y=-3(x+18)--->-3=-3x-54
Then she added the equations:
5y=3x-2
+-3y=-3x-54

2y=-56
y=-28
=3(-28)=x+18
84=x+18
x=66
Did Michelle solve the problem correctly?
If not, explain where she made a mistake
and solve for the correct answer.

Thanks;
I appreciate that

#12 find the value of x. #13 find the value of the variable.

Evaluate the following expression 1/3^2

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