SOLUTION: 4t + 9 = -8t - 13

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Question 512832: 4t + 9 = -8t - 13
Answer by Maths68(1474) About Me  (Show Source):
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4t + 9 = -8t - 13
Add 8t and subtract 9 both sides of the equation
4t+8t+9-9=-8t+8t-13-9
12t=-22
Divide by 12 both sides
12t/12=-22/12
t=-11/6