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2x-y-3=4\times 5
Multiply both sides by 5.
2x-y-3=20
Multiply 4 and 5 to get 20.
2x-3=20+y
Add y to both sides.
2x=20+y+3
Add 3 to both sides.
2x=23+y
Add 20 and 3 to get 23.
2x=y+23
The equation is in standard form.
\frac{2x}{2}=\frac{y+23}{2}
Divide both sides by 2.
x=\frac{y+23}{2}
Dividing by 2 undoes the multiplication by 2.
2x-y-3=4\times 5
Multiply both sides by 5.
2x-y-3=20
Multiply 4 and 5 to get 20.
-y-3=20-2x
Subtract 2x from both sides.
-y=20-2x+3
Add 3 to both sides.
-y=23-2x
Add 20 and 3 to get 23.
\frac{-y}{-1}=\frac{23-2x}{-1}
Divide both sides by -1.
y=\frac{23-2x}{-1}
Dividing by -1 undoes the multiplication by -1.
y=2x-23
Divide 23-2x by -1.