subtract 2 from both sides of the equation that gives you -7x=4-2y decide each term by -7 and simply that gives you -7x/-7=4/-7+-2y/-7 cancel the common factor of -7 decide by 1 and that gives you x=4/7+-2y/-7 simply each term move the negative in front of the fraction....x=-4/7+-2y/-7 dividing two negative values results in a positive value answer is x=-4/7+2y/7
