Hi Courtnee,
It is a good question to cast doubt if there is a unique solution to your linear system (we call it linear because all three equation you listed here are in linear form , i.e ax+by+cz=k where a,b,c,k are numbers and x,y,z are unknows).
The basic idea to solve a linear...

When both writing down and reading the algebraic expressions, the binary operation (including addition+, subtraction-, multiply*, divide/, exponential^) follow a conventional order:
0) Parenthesis, including {}, [], ()
1) Exponent, multiply and divide
2) Addition and subtraction
The ordering is 0)>1)>2). Then there is no ordering within each group, eg multiply...
read more

Hi Ruben,
In order to do fractions, you first need to understand that order of algebraic operation.
When both writing down and reading the algebraic expressions, the binary operation (including addition+, subtraction-, multiply*, divide/, exponential^) follow a conventional order:
0)...

When both writing down and reading the algebraic expressions, the binary operation (including addition+, subtraction-, multiply*, divide/, exponential^) follow a conventional order:
0) Parenthesis, including {}, [], ()
1) Exponent, multiply and divide
2) Addition and subtraction
The...