3x-18=4(-3-0,75x)

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Solution for 3x-18=4(-3-0,75x) equation: 



3x-18=4(-3-0.75x)

We move all terms to the left:

3x-18-(4(-3-0.75x))=0

We add all the numbers together, and all the variables

3x-(4(-0.75x-3))-18=0



We calculate terms in parentheses: -(4(-0.75x-3)), so:

4(-0.75x-3)

We multiply parentheses

0x-12

We add all the numbers together, and all the variables

x-12

Back to the equation:

-(x-12)



We get rid of parentheses

3x-x+12-18=0

We add all the numbers together, and all the variables

2x-6=0

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

2x=6

x=6/2

x=3

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