t^2-7=0

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Solution for t^2-7=0 equation: 


Simplifying
t2 + -7 = 0

Reorder the terms:
-7 + t2 = 0

Solving
-7 + t2 = 0

Solving for variable 't'.

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

Add '7' to each side of the equation.
-7 + 7 + t2 = 0 + 7

Combine like terms: -7 + 7 = 0
0 + t2 = 0 + 7
t2 = 0 + 7

Combine like terms: 0 + 7 = 7
t2 = 7

Simplifying
t2 = 7

Take the square root of each side:
t = {-2.645751311, 2.645751311}

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