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grigory [225]
3 years ago
15

PLEASE HELP!!! Solving equations with substitution! I don't really know how to solve it.

Mathematics
2 answers:
Kipish [7]3 years ago
8 0

Answer:

x = 1

y = 2

Step-by-step explanation:

y = 2x

-6x + 6y = 6

-6x + 6(2x) =6    Substitute the fist equation for the value of y

-6x + 12x = 6     Combine like terms

6x = 6     divide

x = 1

Then, substitute the value of x in the equation for y

y = 2x    y = 2(1)

              y = 2

babunello [35]3 years ago
6 0
<h2>Steps:</h2>

So with using the substitution method, to be able to do so you must have one of the equations isolated with one of the variables. In this case, we see that the first equation has the y variable isolated. Now with this, we are going to substitute y in the second equation for 2x since y = 2x:

-6x+6(2x)=6

From here, we can solve for x:

-6x+6(2x)=6\\-6x+12x=6\\6x=6\\x=1

Since we have the x-value, substitute x for 1 into either equation to solve for y as such:

y=2*1\\y=2\\\\-6(1)+6y=6\\-6+6y=6\\6y=12\\y=2

<h2>Answer:</h2>

In short:

  • x = 1
  • y = 2
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The complete question is given below:-

liana cubed the number of flowering plants in her garden, then added 2 vegetable plants. Let p represent the original number of plants in her garden. Which shows an expression to represent the total number of plants in her garden and the total number of plants if p = 3? 3 p minus 2; when p = 3 the number of plants is 7 3 p + 2; when p = 3 the number of plants is 11 p cubed minus 2; when p = 3 the number of plants is 25 p cubed + 2; when p = 3 the number of plants is 29

<h3 /><h3>What is an expression?</h3>

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