Solve for j
j=\frac{z-4}{3}
Solve for z
z=3j+4
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4+3j=z
Swap sides so that all variable terms are on the left hand side.
3j=z-4
Subtract 4 from both sides.
\frac{3j}{3}=\frac{z-4}{3}
Divide both sides by 3.
j=\frac{z-4}{3}
Dividing by 3 undoes the multiplication by 3.
Examples
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Limits
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