Solve for a, b
a=0
b=0
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a+b-a=0
Consider the first equation. Subtract a from both sides.
b=0
Combine a and -a to get 0.
0+a=0
Consider the second equation. Insert the known values of variables into the equation.
a=0
Anything plus zero gives itself.
a=0 b=0
The system is now solved.
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