4(2t-5)+9=21

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Solution for 4(2t-5)+9=21 equation: 



4(2t-5)+9=21

We move all terms to the left:

4(2t-5)+9-(21)=0

We add all the numbers together, and all the variables

4(2t-5)-12=0

We multiply parentheses

8t-20-12=0

We add all the numbers together, and all the variables

8t-32=0

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

8t=32

t=32/8

t=4

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