3[t-1]=9-t

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Solution for 3[t-1]=9-t equation:


Simplifying
3[t + -1] = 9 + -1t

Reorder the terms:
3[-1 + t] = 9 + -1t
[-1 * 3 + t * 3] = 9 + -1t
[-3 + 3t] = 9 + -1t

Solving
-3 + 3t = 9 + -1t

Solving for variable 't'.

Move all terms containing t to the left, all other terms to the right.

Add 't' to each side of the equation.
-3 + 3t + t = 9 + -1t + t

Combine like terms: 3t + t = 4t
-3 + 4t = 9 + -1t + t

Combine like terms: -1t + t = 0
-3 + 4t = 9 + 0
-3 + 4t = 9

Add '3' to each side of the equation.
-3 + 3 + 4t = 9 + 3

Combine like terms: -3 + 3 = 0
0 + 4t = 9 + 3
4t = 9 + 3

Combine like terms: 9 + 3 = 12
4t = 12

Divide each side by '4'.
t = 3

Simplifying
t = 3

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