0.4x+0.9(25-x)=19.5

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Solution for 0.4x+0.9(25-x)=19.5 equation: 



0.4x+0.9(25-x)=19.5

We move all terms to the left:

0.4x+0.9(25-x)-(19.5)=0

We add all the numbers together, and all the variables

0.4x+0.9(-1x+25)-(19.5)=0

We add all the numbers together, and all the variables

0.4x+0.9(-1x+25)-19.5=0

We multiply parentheses

0.4x-0.9x+22.5-19.5=0

We add all the numbers together, and all the variables

-0.5x+3=0

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

-0.5x=-3

x=-3/-0.5

x=+6

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