.80x+0.05(12-x)=0.10(21)

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Solution for .80x+0.05(12-x)=0.10(21) equation: 



.80x+0.05(12-x)=0.10(21)

We move all terms to the left:

.80x+0.05(12-x)-(0.10(21))=0

We add all the numbers together, and all the variables

.80x+0.05(-1x+12)-(0.1021)=0

We add all the numbers together, and all the variables

.80x+0.05(-1x+12)-0.1021=0

We multiply parentheses

.80x-0.05x+0.6-0.1021=0

We add all the numbers together, and all the variables

0.75x+0.4979=0

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

0.75x=-0.4979

x=-0.4979/0.75

x=-0.4979/0.75

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