Solve for x
x=\frac{80}{\Delta }
\Delta \neq 0
Solve for Δ
\Delta =\frac{80}{x}
x\neq 0
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\Delta x=90-10
Subtract 10 from both sides.
\Delta x=80
Subtract 10 from 90 to get 80.
\frac{\Delta x}{\Delta }=\frac{80}{\Delta }
Divide both sides by \Delta .
x=\frac{80}{\Delta }
Dividing by \Delta undoes the multiplication by \Delta .
\Delta x=90-10
Subtract 10 from both sides.
\Delta x=80
Subtract 10 from 90 to get 80.
x\Delta =80
The equation is in standard form.
\frac{x\Delta }{x}=\frac{80}{x}
Divide both sides by x.
\Delta =\frac{80}{x}
Dividing by x undoes the multiplication by x.
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