40-9=3(t+7)

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Solution for 40-9=3(t+7) equation: 


Simplifying
40 + -9 = 3(t + 7)

Combine like terms: 40 + -9 = 31
31 = 3(t + 7)

Reorder the terms:
31 = 3(7 + t)
31 = (7 * 3 + t * 3)
31 = (21 + 3t)

Solving
31 = 21 + 3t

Solving for variable 't'.

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

Add '-3t' to each side of the equation.
31 + -3t = 21 + 3t + -3t

Combine like terms: 3t + -3t = 0
31 + -3t = 21 + 0
31 + -3t = 21

Add '-31' to each side of the equation.
31 + -31 + -3t = 21 + -31

Combine like terms: 31 + -31 = 0
0 + -3t = 21 + -31
-3t = 21 + -31

Combine like terms: 21 + -31 = -10
-3t = -10

Divide each side by '-3'.
t = 3.333333333

Simplifying
t = 3.333333333

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