Anyone know the answers to these?
Solve the given sytem of equations
Solve the given system of equations by use of determinants
Solve the given system of equation by determinants
Solve the given system of equations by either by either substitution or elimination
First we need the determinant of the coefficient matrix. This is 2610.
Now to solve the system. By Cramer's rule we take the vector on the RHS and replace the columns of the coefficient matrix one by one: