121/2+3x=21.5

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Solution for 121/2+3x=21.5 equation: 



121/2+3x=21.5

We move all terms to the left:

121/2+3x-(21.5)=0

We add all the numbers together, and all the variables

3x-21.5+121/2=0

We multiply all the terms by the denominator


3x*2+121-(21.5)*2=0

We add all the numbers together, and all the variables

3x*2+78=0

Wy multiply elements

6x+78=0

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

6x=-78

x=-78/6

x=-13

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