Solve for a, b
a=12
b=-3
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b=-3
Consider the second equation. Subtract 3 from both sides. Anything subtracted from zero gives its negation.
a-3=9
Consider the first equation. Insert the known values of variables into the equation.
a=9+3
Add 3 to both sides.
a=12
Add 9 and 3 to get 12.
a=12 b=-3
The system is now solved.
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