Solve for r, s, t
t=4
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r-11=-7\times 2
Consider the first equation. Multiply both sides by 2.
r-11=-14
Multiply -7 and 2 to get -14.
r=-14+11
Add 11 to both sides.
r=-3
Add -14 and 11 to get -3.
r=-3 s=4 t=4
The system is now solved.
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