Solve for x
x=\frac{8y+7}{2\left(y+1\right)}
y\neq -1
Solve for y
y=-\frac{2x-7}{2\left(x-4\right)}
x\neq 4
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2\left(x-4\right)y+2\left(x-4\right)=-1
Variable x cannot be equal to 4 since division by zero is not defined. Multiply both sides of the equation by 2\left(x-4\right).
\left(2x-8\right)y+2\left(x-4\right)=-1
Use the distributive property to multiply 2 by x-4.
2xy-8y+2\left(x-4\right)=-1
Use the distributive property to multiply 2x-8 by y.
2xy-8y+2x-8=-1
Use the distributive property to multiply 2 by x-4.
2xy+2x-8=-1+8y
Add 8y to both sides.
2xy+2x=-1+8y+8
Add 8 to both sides.
2xy+2x=7+8y
Add -1 and 8 to get 7.
\left(2y+2\right)x=7+8y
Combine all terms containing x.
\left(2y+2\right)x=8y+7
The equation is in standard form.
\frac{\left(2y+2\right)x}{2y+2}=\frac{8y+7}{2y+2}
Divide both sides by 2y+2.
x=\frac{8y+7}{2y+2}
Dividing by 2y+2 undoes the multiplication by 2y+2.
x=\frac{8y+7}{2\left(y+1\right)}
Divide 8y+7 by 2y+2.
x=\frac{8y+7}{2\left(y+1\right)}\text{, }x\neq 4
Variable x cannot be equal to 4.
2\left(x-4\right)y+2\left(x-4\right)=-1
Multiply both sides of the equation by 2\left(x-4\right).
\left(2x-8\right)y+2\left(x-4\right)=-1
Use the distributive property to multiply 2 by x-4.
2xy-8y+2\left(x-4\right)=-1
Use the distributive property to multiply 2x-8 by y.
2xy-8y+2x-8=-1
Use the distributive property to multiply 2 by x-4.
2xy-8y-8=-1-2x
Subtract 2x from both sides.
2xy-8y=-1-2x+8
Add 8 to both sides.
2xy-8y=7-2x
Add -1 and 8 to get 7.
\left(2x-8\right)y=7-2x
Combine all terms containing y.
\frac{\left(2x-8\right)y}{2x-8}=\frac{7-2x}{2x-8}
Divide both sides by 2x-8.
y=\frac{7-2x}{2x-8}
Dividing by 2x-8 undoes the multiplication by 2x-8.
y=\frac{7-2x}{2\left(x-4\right)}
Divide 7-2x by 2x-8.
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Simultaneous equation
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Limits
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