Answer:
Step-by-step explanation:
3x-y = 2
2x+y =4
put them into slope intercept form
y=3x-2
y=-2x+4
Now, you can either graph it or use substitution
3x-2 = -2x+4
+2x +2x
5x -2 = 4
+2 +2
5x = 6
5x/5 = 6/5
x = 6/5
3x -2 = y
3(6/5) -2 = y
3 x 6 / 1 x 5 = 18/5
3 3/5 -2 = 1 3/5
Let me know if it's wrong.
Hope this helps
An expression is just a mathematical phrase. A numericalexpression contains numbers and operations. An algebraic expression is almost exactly the same except it also contains variables!
Hope this helped :)
Answer:
x=12, y=6
Step-by-step explanation:
Very simple!
Just substitute 0 for y and solve for x!
(anything times 0 equals 0!)
Now you can do the same thing but substitute 0 for x!
Hope this helps!
Answer:
R={-1, -11, 7}
Step-by-step explanation:
-2(2)^2+7=
-2(4)+7=
-8+7=
-1
-2(-3)^2+7=
-2(9)+7=
-18+7=
-11
-2(0)^2+7=
-2(0)+7=
0+7=
7
Answer:
Step-by-step explanation:
