Subjects algebra

Linear Equation 22Fd93

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Question: Solve the equation 16 - 2t = 5t + 9.
1. **State the problem** Solve the equation $16 - 2t = 5t + 9$. 2. **Use the goal of isolating the variable** We want all the $t$ terms on one side and all the numbers on the other side. 3. **Subtract $5t$ from both sides** $$16 - 2t - 5t = 5t + 9 - 5t$$ $$16 - 7t = 9$$ 4. **Subtract $16$ from both sides** $$16 - 7t - 16 = 9 - 16$$ $$-7t = -7$$ 5. **Divide both sides by $-7$** $$\frac{-7t}{-7} = \frac{-7}{-7}$$ $$\cancel{-7}t/\cancel{-7} = \cancel{-7}/\cancel{-7}$$ $$t = 1$$ 6. **Check the answer** Substitute $t = 1$ into the original equation: $$16 - 2(1) = 5(1) + 9$$ $$16 - 2 = 5 + 9$$ $$14 = 14$$ The check works, so the solution is correct. **Final answer:** $t = 1$