z+2.5z-2.1=3(z+2.8)

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Solution for z+2.5z-2.1=3(z+2.8) equation:


z+2.5z-2.1=3(z+2.8)

We simplify the equation to the form, which is simple to understand 
z+2.5z-2.1=3(z+2.8)

Reorder the terms in parentheses
z+2.5z-2.1=+(+3z+8.4)

Remove unnecessary parentheses
+z+2.5z-2.1=+3z+8.4

We move all terms containing z to the left and all other terms to the right. 
+1z+2.5z-3z=+8.4+2.1

We simplify left and right side of the equation. 
 + 0.5z=+10.5

We divide both sides of the equation by 0.5 to get z. 
z=21

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