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## Homework Statement

Need to prove that a slider crank mechanism fits the Grueblers eqaution, already done for a four bar mechanism no problem, however having some serious problems with the slider crank.

**If l is the number of links and j is the number of joints**

## Homework Equations

Grueblers equation is

3l-2j-4=0

## The Attempt at a Solution

Looking at a slider crank mechanism, i deduced that l=4 and j=3, however it does not fit the grueblers equation