elimination method solving linear equations simultaneously
Post on 18-Jan-2016
228 Views
Preview:
TRANSCRIPT
Elimination method
Solving linear equations simultaneously
Step-by step
• Step 1 :- Multiply the given equations by suitable numbers so as to make the coefficients of one of the unknowns, numerically equal
• Step 2 :- Add the new equations, if the numerically equal coefficients are opposite in sign, otherwise, subtract them.
• Step 3 :- The resulting equation is linear in one unknown. Solve it to obtain the value of one of the unknowns.
• Step 4 :- Substitute the value of this unknown in any of the given equations. Solve it to get the value of the other unknown.
Example #1
• Open your books to p. 128 #20
Example #2
• Open your books to p. 129 #32
top related