2.8x+9.8=21

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Solution for 2.8x+9.8=21 equation: 



2.8x+9.8=21

We move all terms to the left:

2.8x+9.8-(21)=0

We add all the numbers together, and all the variables

2.8x-11.2=0

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

2.8x=11.2

x=11.2/2.8

x=4

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