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t*2-5t=7
We move all terms to the left:
t*2-5t-(7)=0
We add all the numbers together, and all the variables
-5t+t*2-7=0
Wy multiply elements
-5t+2t-7=0
We add all the numbers together, and all the variables
-3t-7=0
We move all terms containing t to the left, all other terms to the right
-3t=7
t=7/-3
t=-2+1/3
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