12.4=9+t

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Solution for 12.4=9+t equation: 


Simplifying
12.4 = 9 + t

Solving
12.4 = 9 + t

Solving for variable 't'.

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

Add '-1t' to each side of the equation.
12.4 + -1t = 9 + t + -1t

Combine like terms: t + -1t = 0
12.4 + -1t = 9 + 0
12.4 + -1t = 9

Add '-12.4' to each side of the equation.
12.4 + -12.4 + -1t = 9 + -12.4

Combine like terms: 12.4 + -12.4 = 0.0
0.0 + -1t = 9 + -12.4
-1t = 9 + -12.4

Combine like terms: 9 + -12.4 = -3.4
-1t = -3.4

Divide each side by '-1'.
t = 3.4

Simplifying
t = 3.4

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