Need substitution method. the system of equations : y= 35 + 5x , y=100 - 8x . in how many minutes will the tanks contain the same amount of water ?

We can substitute the expression for y from the first equation into the second equation, which just means setting the two equations to be equal:

35 + 5x = 100 - 8x

5x + 8x = 100 - 35

13 x = 65

x = 5

That's 5 minutes presumably, at which time each tank has 35+5(5)=60 units of water.

location: point 0

step-by-step explanation:

well, -8 to 10 on a number line is 18 spaces.

1/9 of 18 is 2.

so, 4/9 of 18 must be 8.

8 spaces from -8 (a) is 0.

so, 4/9 of the way from -8 to 10 is 0!

fa tha first one you gonna add y to both sides

it look like this

x-y+y=6+y

x=y+6

therefore your answer is

x =y+6

fa tha second one

you gonna flip tha equation

it gonna look like x-4y=y

then add 4 to both sides

it gonna look like tha

x-4 +4 =y +4

so therefore tha answer is x=y+4

step-by-step explanation: