100 POINTS ANSWER HURRY

2 answers:

4 0

X-3y=18
X always has a 1 in front of it so
1x-3y=18
-1x -1x You will have to get -3y by its self.
-3y=-1x + 18 when you move 1x over the = it turns into a -1x
/-3 /-3 /-3 divided everything by -3 to get y by its self
Y= 1/3 - 6 and that is you answer

shusha [124]3 years ago

4 0

Step-by-step explanation:

x-3y=18 were going to put the x's on one side and the y's one side

-3y=18-x so to get y by itself where going to have to divide -3y by -3 but remember what ever you do to one side u do to the other

-3y/-3 = 18/-3-x/-3 - with a - is +

y= -6 + 1x/3

~batmans wife dun dun dun.....

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shutvik [7]

Answer:

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Step-by-step explanation:

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For point 2:

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Adding $k_1$ equation and multiply by 2 in the equation $k_2$ so we get $\to 4NH_3\ (g) +7 O_2\ (g) \leftrightharpoons 4 NO_2\(g) +6H_2O\ (g)....... k\\\\k= k_1\times k_{2}^2\\\\k=k_1k_{2}^2\\\\$