3-x=4,3x-9=12

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Solution for 3-x=4,3x-9=12 equation: 



3-x=4.3x-9=12

We move all terms to the left:

3-x-(4.3x-9)=0

We add all the numbers together, and all the variables

-1x-(4.3x-9)+3=0

We get rid of parentheses

-1x-4.3x+9+3=0

We add all the numbers together, and all the variables

-5.3x+12=0

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

-5.3x=-12

x=-12/-5.3

x=2+1/3.7857142857143

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