1t+1-4t+8=21

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Solution for 1t+1-4t+8=21 equation:


Simplifying
1t + 1 + -4t + 8 = 21

Reorder the terms:
1 + 8 + 1t + -4t = 21

Combine like terms: 1 + 8 = 9
9 + 1t + -4t = 21

Combine like terms: 1t + -4t = -3t
9 + -3t = 21

Solving
9 + -3t = 21

Solving for variable 't'.

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

Add '-9' to each side of the equation.
9 + -9 + -3t = 21 + -9

Combine like terms: 9 + -9 = 0
0 + -3t = 21 + -9
-3t = 21 + -9

Combine like terms: 21 + -9 = 12
-3t = 12

Divide each side by '-3'.
t = -4

Simplifying
t = -4

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