...Method. — Given 3z+4'/=43 \ to find the values 5x — 7y= — 24 J of x and y. Rule Multiply the two equations by such numbers as will make the coefficients of one of the unknown quantities the same in both the resulting equations, and from these last equations obtain, by addition...

...These illustrations give the following general rule. Multiply each of the equations, where necessary, by such numbers as will make the coefficients of one of the unknown quantities tlie sume in each equation. Then if the signs of this unknown quantity are alike, subtract...

...subtraction, Multiply the equations by such numbers as will make the coefficients of this unknown quantity equal in the resulting equations. Add the resulting...subtract one from the other, according as these equal quantities have unlike or like signs. NOTE. It is generally best to select that unknown quantity to...

...— 1 , y = 2. This solution is an example of elimination by subtraction. BULE. Multiply the given equations by such numbers as will make the coefficients of one of the unknown quantities equal. Add or subtract the resulting equations according as the equal coefficients have...

...— l , у = 2. This solution is an example of elimination by subtraction. RULE. Multiply the given equations by such numbers as will make the coefficients of one of the unknown quantities equal. Add or subtract the resulting equations according as the equal coefficients have...

...— 1, у = 2. This solution is an example of elimination by subtraction. EULE. Multiply the given equations by such numbers as will make the coefficients of one of the unknown quantities equal. Add or subtract the resulting equations according as the equal coefficients have...

...subtraction, Multiply the equations by such numbers as will make the coefficients of this unknown quantity equal in the resulting equations. Add the resulting...subtract one from the other, according as these equal quantities have unlike or like signs. NOTE. It is generally best to select that unknown quantity to...

...= — 1, y = 2. This solution is an example of elimination by subtraction. BULB. Multiply the given equations by such numbers as will make the coefficients of one of the unknown quantities equal. Add or subtract the resulting equations according as the equal coefficients have...

...Whence, y = 2. Substituting this value in (1), 15 x + 16 = 1. RULE. If necessary, multiply the given equations by such numbers as will make the coefficients of one of the unknown quantities in the resulting equations of equal absolute value. Add or subtract the resulting equations...

...8*-63-33. Л x - 12. 185. Hence, to eliminate by addition or subtraction, we have the following rule : Multiply the equations by such numbers as will make...according as these equal coefficients have unlike or like sic/7is. NOTE. It is generally best to select the letter to be eliminated which requires the smallest...