3+x+9=12+-2x-1/2

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Solution for 3+x+9=12+-2x-1/2 equation: 



3+x+9=12+-2x-1/2

We move all terms to the left:

3+x+9-(12+-2x-1/2)=0

We add all the numbers together, and all the variables

x-(-2x-1/2)+3+9=0

We add all the numbers together, and all the variables

x-(-2x-1/2)+12=0

We get rid of parentheses

x+2x+12+1/2=0

We multiply all the terms by the denominator


x*2+2x*2+1+12*2=0

We add all the numbers together, and all the variables

x*2+2x*2+25=0

Wy multiply elements

2x+4x+25=0

We add all the numbers together, and all the variables

6x+25=0

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

6x=-25

x=-25/6

x=-4+1/6

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