3t+18-7=21

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Solution for 3t+18-7=21 equation:


Simplifying
3t + 18 + -7 = 21

Reorder the terms:
18 + -7 + 3t = 21

Combine like terms: 18 + -7 = 11
11 + 3t = 21

Solving
11 + 3t = 21

Solving for variable 't'.

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

Add '-11' to each side of the equation.
11 + -11 + 3t = 21 + -11

Combine like terms: 11 + -11 = 0
0 + 3t = 21 + -11
3t = 21 + -11

Combine like terms: 21 + -11 = 10
3t = 10

Divide each side by '3'.
t = 3.333333333

Simplifying
t = 3.333333333

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