-4=(0.5-12x)+3x-4.2

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Solution for -4=(0.5-12x)+3x-4.2 equation: 



-4=(0.5-12x)+3x-4.2

We move all terms to the left:

-4-((0.5-12x)+3x-4.2)=0

We add all the numbers together, and all the variables

-((-12x+0.5)+3x-4.2)-4=0



We calculate terms in parentheses: -((-12x+0.5)+3x-4.2), so:

(-12x+0.5)+3x-4.2

We add all the numbers together, and all the variables

3x+(-12x+0.5)-4.2

We get rid of parentheses

3x-12x+0.5-4.2

We add all the numbers together, and all the variables

-9x-3.7

Back to the equation:

-(-9x-3.7)



We get rid of parentheses

9x+3.7-4=0

We add all the numbers together, and all the variables

9x-0.3=0

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

9x=0.3

x=0.3/9

x=0.3/9

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