Answer:
5y=2
Step-by-step explanation:
8y + 4 = 6 + 2y + 1y
Combine like terms
8y+4 = 6+3y
Subtract 3y from each side
8y-3y+4 = 6+3y-3y
5y +4 = 6
subtract 4 from each side
5y+4-4 = 6-2
5y=2
Answer:
Step-by-step explanation:
Answer:
2x + y = -7
Step-by-step explanation:
Standard form is Ax + By = C
A represents the coefficient with x
B represents the coefficient with y
C represents the constants
1 - Rewrite to make it easier to work it out
y - 3 = -2 ( x + 5 )
2 - Distribute
y - 3 = -2x - 10
3 - Get the variables on one side and the constants on the other
y - 3 = -2x - 10
+ 2x + 2x
2x + y - 3 = -10
+ 3 + 3
2x + y = -7
Hope this helps,
The correct question is
<span>Zach keeps his pet chameleon Pinky in a terrarium with the dimensions 8 x 20. There are three inches of sand in the bottom of the terrarium. Zach gets a new terrarium that is larger. The base of the new terrarium is 10 x 24 inches. Zach moved the existing sand to the new terrarium. How deep will the sand be in the new terrarium?
</span>
Step 1
find the volume of sand
volume of sand=8*20*3------------>Volume of sand=480 in³
Volume of sand in the new terrarium=10*24*h
where h------------> is the deep in the new terrarium
remember that the volume of sand is the same
so
10*24*h=480----------> h=480/(10*24)-----------> h=2 in
the answer is 2 in
If you would like to find the solution of the system of equations, you can do this using the following steps:
x - 8y = 21 /*(-3)
3x - 8y = 15
______________
-3x + 24y = -63
<span>3x - 8y = 15
</span>______________
-3x + 24y + 3x - 8y = -63 + 15
16y = -48 /16
y = -48/16
y = -3
<span>x - 8y = 21
</span>x = 21 + 8y
x = 21 + 8 * (-3)
x = 21 - 24
x = -3
(x, y) = (-3, -3)
The correct result would be (-3, -3).
