0.5x+1.2x=8.4-x

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Solution for 0.5x+1.2x=8.4-x equation: 



0.5x+1.2x=8.4-x

We move all terms to the left:

0.5x+1.2x-(8.4-x)=0

We add all the numbers together, and all the variables

0.5x+1.2x-(-1x+8.4)=0

We add all the numbers together, and all the variables

1.7x-(-1x+8.4)=0

We get rid of parentheses

1.7x+1x-8.4=0

We add all the numbers together, and all the variables

2.7x-8.4=0

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

2.7x=8.4

x=8.4/2.7

x=3+0.3/2.7

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