3t-15=42

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Solution for 3t-15=42 equation: 


Simplifying
3t + -15 = 42

Reorder the terms:
-15 + 3t = 42

Solving
-15 + 3t = 42

Solving for variable 't'.

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

Add '15' to each side of the equation.
-15 + 15 + 3t = 42 + 15

Combine like terms: -15 + 15 = 0
0 + 3t = 42 + 15
3t = 42 + 15

Combine like terms: 42 + 15 = 57
3t = 57

Divide each side by '3'.
t = 19

Simplifying
t = 19

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