Please can someone help me with the section of the following equation?
I don't understand how the answers are produced by "solving simultaneously".
I would be very thankful if someone can help me. I have an exam on Friday and I can't make sence of this.
Thanks,
TK
Hello, TK!
Where did this problem come from? .Those variables are ugly!I don't understand how the answers are produced by "solving simultaneously".
Let: .
The equations become: .
Subtract (9) - (10): .
Add (9) + 3·(10): .
Too slow again . . . Nice job, Mr. F!
.
You need to study how to solve linear equations simultaneously. The method used by Soroban and myself is called the elimination method. Read this: Systems of Linear Equations: Solving by Addition / Elimination
They could also have been solved using the substitution method. Read this: Systems of Linear Equations: Solving by Substitution