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Damm [24]
3 years ago
6

Solve for the variables: 2x+5y=37 11-2x=y

Mathematics
2 answers:
qaws [65]3 years ago
6 0

Answer:

<em><u>x= 2.25</u></em>

<u><em>y=6.5</em></u>

Step-by-step explanation:

2x+5y=37 <u><em>y</em></u>=11-2x

2x+5(11-2x)=37

2x+55-10x=37

-8x+55=37

-55       -55

-8x=-18

÷-8   ÷-8

<em><u>x= 2.25</u></em>

<u><em>y</em></u>=11-2x

<u><em>y</em></u>=11-2(2.25)

<u><em>y</em></u>=11-4.5

<u><em>y=6.5</em></u>

Damm [24]3 years ago
6 0

Answer: x= 18/8 y = 13/2

Step-by-step explanation:

We know that y = 11-2x

So, you want to do the substitution method.

The equation states : 2x+5y  = 37

So, you would substitute the y in the equation for 11-2x

2x+5(11-2x) = 37

2x+55-10x = 37  (combine like terms)

-8x +55 = 37 (subtract 55 from each side)

-8x = -18 ( divide -8 from each side)

x = 18/8

Now, we need to solve for y. For that, we just need to substitute the x in the y equation.

It would look like this: 11-2(18/8) =y

Now we solve.

11-18/4 = 13/2 (6.5)

So, y equals 13/2. Now to check , plug in each for the equation and see if it is correct.  

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