Answer:
y=7
Step-by-step explanation:
We have two numbers,
x
,
y
. We know two things about them:
2
x
+
y
=
25
3
x
−
y
=
20
Let's add these two equations together which will cancel the
y
:
5
x
+
0
y
=
45
x
=
45
5
=
9
We can now substitute in the
x
value into one of the original equations (I'll do both) to get to
y
:
2
x
+
y
=
25
2
(
9
)
+
y
=
25
18
+
y
=
25
y
=
7
3
x
−
y
=
20
3
(
9
)
−
y
=
20
27
−
y
=
20
Answer:
x = -6
Step-by-step explanation:
Solve:
4x = 1/3(6x - 30) - 2
4x = 2x - 10 - 2
2x = -10 - 2
2x = -12
x = -6
Check:
4(-6) = 1/3(6(-6) - 30) - 2
-24 = 1/3(-36 - 30) - 2
-24 = 1/3(-66) - 2
-24 = -22 - 2
-24 = -24
figure 1: greater than or equal to -4 because the dot is colored in and its pointing right
figure 2: less than 6 (NOT equal to) because the dot is not colored in and its pointing left
hope this helps :)
If you don't have to use all the letters then you can say greed, red
