\sum x = 40
Solve for x
x=\frac{40}{Σ}
Σ\neq 0
Solve for Σ
Σ=\frac{40}{x}
x\neq 0
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Σx=40
The equation is in standard form.
\frac{Σx}{Σ}=\frac{40}{Σ}
Divide both sides by Σ.
x=\frac{40}{Σ}
Dividing by Σ undoes the multiplication by Σ.
xΣ=40
The equation is in standard form.
\frac{xΣ}{x}=\frac{40}{x}
Divide both sides by x.
Σ=\frac{40}{x}
Dividing by x undoes the multiplication by x.
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