Respuesta :
Answer:
The value of each variable is:
- x= 1/15 or 0.066666667
- y= 1.9333333
- z= 0.1
Step-by-step explanation:
To identify each of the variables you just have to adequately clear the equation provided as I show you below:
- First equation to identify x: 1=15x
Clear x by passing the number 15 that is multiplying on one side of the equation, to divide on the other side:
- 1/15= x or x= 1/15
you can leave the value as fractional or decimal, in which case you just have to do the division.
Now you take the second equation:
- 2=x+y.
You use this equation to clear the variable y, since you already identified the variable x with the previous equation, then first replace the values you already know:
- 2= (1/15)+y
Remember that thanks to the commutative law of addition, write x + y is the same as writing y + x, so let's change that order so you don't get confused later:
- 2= y+(1/15)
Since the value of x is adding, you can pass it to the other side to subtract and operate it:
- 2-(1/15)= y
- 1.9333333= y or y= 1.9333333
Now we bring the third equation to identify z:
- 3= 30z
To identify the z, a process similar to that performed with the first equation is made, that is, to pass the number that is multiplying to the other side to divide:
- 3/30= z
- 0.1= z or z= 0.1