(7-t)2=4

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Solution for (7-t)2=4 equation: 



(7-t)2=4

We move all terms to the left:

(7-t)2-(4)=0

We add all the numbers together, and all the variables

(-1t+7)2-4=0

We multiply parentheses

-2t+14-4=0

We add all the numbers together, and all the variables

-2t+10=0

We move all terms containing t to the left, all other terms to the right

-2t=-10

t=-10/-2

t=+5

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