Property 1 states that if we add the left sides of two equations together and the right sides of the same two equations together, the resulting sums will be equal. (a) Substitute the value obtained in...Property 1 states that if we add the left sides of two equations together and the right sides of the same two equations together, the resulting sums will be equal. (a) Substitute the value obtained in step 4 into either of the original equations and solve to obtain the value of the other variable, When the lines of a system are parallel or coincident, the method of elimination produces results identical to that of the method of elimination by substitution.
(a) Sustituir el valor obtenido en el paso 4 en cualquiera de las ecuaciones originales y resolver para obtener el valor de la otra variable, \ end {array}\ right tarrow\ left\ {\ begin {array} {l} \ ...(a) Sustituir el valor obtenido en el paso 4 en cualquiera de las ecuaciones originales y resolver para obtener el valor de la otra variable, \ end {array}\ right tarrow\ left\ {\ begin {array} {l} \ end {array}\ rightarrow\ left\ {\ begin {array} {l} \ end {array}\ quad\ rightarrow\ quad\ left\ {\ begin {array} {c} \ end {array}\ rightarrow\ left\ {\ begin {array} {c}
