Solve for r, s, t
t=18
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7+r=25
Consider the first equation. Swap sides so that all variable terms are on the left hand side.
r=25-7
Subtract 7 from both sides.
r=18
Subtract 7 from 25 to get 18.
s=18
Consider the second equation. Insert the known values of variables into the equation.
t=18
Consider the third equation. Insert the known values of variables into the equation.
r=18 s=18 t=18
The system is now solved.
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