2t+21=4.5

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Solution for 2t+21=4.5 equation: 



2t+21=4.5

We move all terms to the left:

2t+21-(4.5)=0

We add all the numbers together, and all the variables

2t+16.5=0

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

2t=-16.5

t=-16.5/2

t=-8+0.5/2

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