SOLUTION: Solve: (7t-21)+(t+4)=15
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Algebra: Expressions involving variables, substitution
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Question 8649
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Solve: (7t-21)+(t+4)=15
Answer by
jennifer(9)
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Combine like terms.
(7t-21)+t=11
8t-21=11
8t=32
t=4.
(