Answer:
I think this is the answer but I am not sure sry if I am wrong
Step-by-step explanation:
2x+y=2
y=2-2x
2x+4y=-10
2x+4×(2-2x)=-10
2x+8-8x=-10
2x-8x=-2
-6x=-2
x= 1/3
2×1/3+y=2
y=41/3
Example: 2x+2y=8 and 3y+2x=6
Okay so u first want to put on of the equations into a y= form. So let's use 3y+2x=6. Subtract 2x from both sides. 3y=6-2x divide by 3. Y= 6-2/3x or y= -2/3x + 6. Now just plug this new equation in for Y since "y=" into the other equation.
2x + 2(-2/3x + 6) = 8.
Then you would distribute the 2 into the parenthesis and simplify to solve for x.
After you solve for x, plug x into one of the original equations to find y.
1: Ratio
2: Unit Rate
3: Scale Drawing
4: Similar Figures
5: US Customary System
6: Rate
7: Scale
I hope this helps! :)
Answer:
Step-by-step explanation:
Let L be the length of the ladder,
Given,
x = the distance from the base of the ladder to the wall, and t be time.
y = distance from the base of the ladder to the wall,
So, by the Pythagoras theorem,
,
Differentiating with respect to time (t),
Here,
Also, 
( Ladder length = constant ),
Which is the required notation.
