SOLUTION: a handbag and a briefcase cost rs 420 while seven handbag and 4 briefcase cost 2130. calculate the price of each.

Algebra ->  College  -> Linear Algebra -> SOLUTION: a handbag and a briefcase cost rs 420 while seven handbag and 4 briefcase cost 2130. calculate the price of each.       Log On


   

Question 1043499: a handbag and a briefcase cost rs 420 while seven handbag and 4 briefcase cost 2130. calculate the price of each.
Answer by ikleyn(52776) About Me  (Show Source):
You can put this solution on YOUR website!
.
a handbag and a briefcase cost rs 420 while seven handbag and 4 briefcase cost 2130. calculate the price of each.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~` 

 h +  b =  420,   (1)
7h + 4b = 2130.   (2)

Solve this system. You can use the Elimination method or the Substitution method.
They both work in this case.

See the lessons
    - Solution of the linear system of two equations in two unknowns by the Substitution method
    - Solution of the linear system of two equations in two unknowns using determinant
    - Solution of the linear system of two equations in two unknowns by the Elimination method
    - Geometric interpretation of the linear system of two equations in two unknowns
    - Solving word problems using linear systems of two equations in two unknowns
    - OVERVIEW of lessons on solving systems of two linear equations in two unknowns
in this site.