3x-x+2x=4-25

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Solution for 3x-x+2x=4-25 equation: 



3x-x+2x=4-25

We move all terms to the left:

3x-x+2x-(4-25)=0

We add all the numbers together, and all the variables

3x-x+2x-(-21)=0

We add all the numbers together, and all the variables

4x+21=0

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

4x=-21

x=-21/4

x=-5+1/4

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