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Suppose two eggs with bacon cost $2.70. One egg with bacon costs $1.80. At these rates what will bacon alone cost
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Nice problem !! Thanks for posting it ! It has nice solution, too.
Two eggs with bacon cost $2.70.
One egg with bacon costs $1.80.
HENCE (!), one egg costs exactly $2.70 - $1.80 = $0.90. Agree ?
Now only one step remains to reveal that the bacon itself costs $1.80 - $0.90 = $0.90.
Answer. The bacon alone costs $0.90.
Solved (!)
It is how the Elimination method works
I explained it to you here without using equations.
I used the words only (!!).
If you want to learn on how to solve systems of linear equations in 2 (two) unknowns, read the lessons
- 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 Substitution method
- 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
in this site.
Also, you have this free of charge online textbook in ALGEBRA-I in this site
- ALGEBRA-I - YOUR ONLINE TEXTBOOK.
The referred lessons are the part of this online textbook under the topic "Systems of linear equations".