Elimination Method:
\The system of equations are
\ Equation (1)
Equation (2)
Rewite the second equation in terms of first equation.
\ Equation (2)
Neither variable has a common coefficient.The coefficient of the x - variables are 4 and 3 and their least common multipe is 12, so multiply each equation by the value that will make the x - coefficient 12.
\Add the equations to elimante x - variable.
\Write the equations in column form and add the corresponding columns.
\Apply division property of equality: Divide each side by 38.
\ (Cancel common terms).
Now, find the x value by substituting in
.
(Multiply:
)
Apply subtraction property of equality: Subtract 48 from each side.
\ (Apply additive inverse property:
)
(Apply additive identity property:
)
(Subtract:
)
(Divide each side by 4)
(Cancel common terms)
The system of solution is .