To solve for any given number of variables, you need that number of equations to solve for all variables. When there are only two variables you only need to equations to solve for them both. You eliminate one variable at a time, order does not matter.
y-x=6 and y+x=-10
Since one equation has -x and the other +x, you can simply add the two equations together to eliminate x...
(y-x=6)+(y+x=-10)
y+y-x+x=6-10
2y=-4
y=-2, now you can use this value of y in either original equation to solve for x...
y-x=6, using y=-2 becomes:
-2-x=6
-x=8
x=-8
So the solution to the system of equations is the point (-8, -2)
You can always check by using these two values in the original equations...
y-x=6, -2--8=6, -2+8=6, 6=6
y+x=-10, -2+(-8)=-10, -2-8=-10, -10=-10
Answer:
A
Step-by-step explanation:
Hope this helps!
Answer:
f(x)=-1/3x+7 2/3
Step-by-step explanation:
Find the slope:
m= -1/3
Find the y-intercept:
b= -7 2/3
Answer:
2
Step-by-step explanation:
because i am smart
Answer:Yes, since the pop up ads are unsolicited they are also disruptive
Step-by-step explanation: when you get something that you have not asked for and that you don't want , it disrupt your flow of information. They just pop up whilst you are reading up on important topics and for that moment they take away the focus on what you are reading as you try to figure out if they are part of it or not.
They stop the flow of thinking when you are doing the work online , because they have different types of products which may actual disrupt what you are doing when you find yourself opening up the pop up advertisement.