



Cross multiply the equations on both sides.

Multiply 13 and 2 to get 26.

Use the distributive property to multiply 26 by x-1.

Multiply 4 and 2 to get 8.

Use the distributive property to multiply 8 by x+8.

Subtract 8x from both sides.

Combine 26x and -8x to get 18x.

Add 26 to both sides.

Add 64 and 26 to get 90.

Divide both sides by 18.

Divide 90 by 18 to get 5.
