(5x-18)-30=(3x+42)-30

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Solution for (5x-18)-30=(3x+42)-30 equation: 



(5x-18)-30=(3x+42)-30

We move all terms to the left:

(5x-18)-30-((3x+42)-30)=0

We get rid of parentheses

5x-((3x+42)-30)-18-30=0



We calculate terms in parentheses: -((3x+42)-30), so:

(3x+42)-30

We get rid of parentheses

3x+42-30

We add all the numbers together, and all the variables

3x+12

Back to the equation:

-(3x+12)



We add all the numbers together, and all the variables

5x-(3x+12)-48=0

We get rid of parentheses

5x-3x-12-48=0

We add all the numbers together, and all the variables

2x-60=0

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

2x=60

x=60/2

x=30

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