4.2+8.1=x(1.9)

Solution for 4.2+8.1=x(1.9) equation:

4.2+8.1=x(1.9)

We move all terms to the left:

4.2+8.1-(x(1.9))=0

We add all the numbers together, and all the variables

-(x(1.9))+12.3=0


We calculate terms in parentheses: -(x(1.9)), so:

x(1.9)

We multiply parentheses

1.9x

Back to the equation:

-(1.9x)


We add all the numbers together, and all the variables

-(+1.9x)+12.3=0

We get rid of parentheses

-1.9x+12.3=0

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

-1.9x=-12.3

x=-12.3/-1.9

x=6+0.9/1.9