Solving a Manometer Equation: Ryan Needs Help

[Muller]

Homework Statement

Okay so we have a question about manometers. After drawing the diagram and managing to calculate all of the previous bits of the question i narrowed it down to this equation.

8405.208-133416(z-0.063)=9810z

where i need to find Z. I was just wondering if someone could help me rearange to just find z which should be 68mm or 0.063m

Many thanks in advance
Ryan

 

[tiny-tim]

Welcome to PF!

8405.208-133416(z-0.063)=9810z

where i need to find Z. I was just wondering if someone could help me rearange to just find z which should be 68mm or 0.063m

Hi Ryan! Welcome to PF!

Hint: expand 133416(z-0.063), and then move all the z over to the right-hand side.

 

[50Cent]

Just expand the brackets and re-arrange... i typed it in, got 11mm but i might have put it in wrong give it a go...

8405.208-133416(z-0.063)=9810*z
8405.208 -133416*z +(133416*0.063) = 9810*z
8405.208 +(133416*0.063) = 9810*z + 133416*z
8405.208 +(133416*0.063) = (9810 + 133416)*z

solve for Z