4.2z=-4(0z-1.2)

Solution for 4.2z=-4(0z-1.2) equation:

4.2z=-4(0z-1.2)

We move all terms to the left:

4.2z-(-4(0z-1.2))=0

We add all the numbers together, and all the variables

4.2z-(-4(z-1.2))=0


We calculate terms in parentheses: -(-4(z-1.2)), so:

-4(z-1.2)

We multiply parentheses

-4z+4.8

Back to the equation:

-(-4z+4.8)


We get rid of parentheses

4.2z+4z-4.8=0

We add all the numbers together, and all the variables

8.2z-4.8=0

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

8.2z=4.8

z=4.8/8.2

z=1/1.70833333333