Solve for x
x=\frac{\Delta -5}{4}
Solve for Δ
\Delta =4x+5
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\Delta =4x+5
Combine 1x and 3x to get 4x.
4x+5=\Delta
Swap sides so that all variable terms are on the left hand side.
4x=\Delta -5
Subtract 5 from both sides.
\frac{4x}{4}=\frac{\Delta -5}{4}
Divide both sides by 4.
x=\frac{\Delta -5}{4}
Dividing by 4 undoes the multiplication by 4.
\Delta =4x+5
Combine 1x and 3x to get 4x.
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