OK. Here we go. Since Migo isn't sure what the question is,
I have to take my best guess.
I'll tell you two questions that I'm sure it's one of, and I'll answer
both of the questions that I made up myself.
Ordinarily I wouldn't bother with this one, but I was blinded by the
radiance of the bountiful 5 points that await me at the end.
Question #1: Solve the equation for 'x' .
Answer: You said 3x + 7y = 2
Subtract 7y from each side: 3x = -7y + 2
Divide each side by 3 : x = - 7/3 y + 2/3
==========================================
Question #2: Solve the equation for 'y' .
Answer: You said 3x + 7y = 2
Subtract 3x from each side: 7y = -3x + 2
Divide each side by 7 : y = -3/7 x + 2/7
Answer:
22222222222222222by5y-step explanation:
So y+x=2
x-y=4
one way is subsituteion where yousubisutte one of the number for another exg
x-y=4
add y to both sides
x=y+4
subsitute y+4 for x in x+y=2
y+4+y=2
2y+4=2
subtract 4 from both sides
2y=-2
divide both sides by 2
y=-1
subsiutte
x+y=2
x-1=2
x=3
or elimination
x+y=2
x-y=4
add the two equations and cancel the y terms
x+x+y-y=2+4
2x=6
divide both sides by 2
x==3
subsitute
x+y=2
3+y=2
y=-1
so x=3
y=-1
This isn't really mathematics but I can give you an answer.
Assuming, it's in the dark (cuz in the light, why would you use flash), a person in the photograph can gain a red-eye (in the photo).
The only one I can think of is red eye.
Hey there! I'm happy to help!
Let's have the capacity be c. The tank is currently at 4/5c. We subtract 190 and then we are at 1/6c. Let's set this up as an equation and solve it.
4/5c-190=1/6c
We want to get the c all by itself to see the capacity of the tank. Let's get all of the c values on the left side of the equation and the numbers on the right by using inverse operations.
4/5c-190=1/6c
Add 190 to both sides.
4/5c=1/6+190
Subtract 1/6 from both sides.
19/30c=190
Divide both sides by 19/30.
c=300
So, the capacity of the tank is 300 liters of water.
Have a wonderful day and keep on learning! :D
