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Sever21 [200]
3 years ago
11

3x = 9 - 6y

Mathematics
1 answer:
babunello [35]3 years ago
7 0
Equation 1)  3x = 9 - 6y
Equation 2)  3x + 8y = 9

Add 6y to both sides in equation #1.

1)  3x + 6y = 9
2)  3x + 8y = 9

Subtract equations from one another.

-2y = 0

Divide both sides by -2.

y = 0

Plug in 0 for y in the first equation.

3x = 9 - 6y

3x = 9 - 6(0)

Simplify.

3x = 9 - 0

Simplify.

3x = 9

Divide both sides by 3.

x = 3

So, x = 3, y = 0

~Hope I helped!~
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Below

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8 0
2 years ago
The perimeter of the square can be represented by the expression 36x+44 robin wants to write an equivalent expression for the pe
sukhopar [10]

Answer:

4  (9 x + 11) is an equivalent expression for the perimeter that shows the side length of the square is  (9 x + 11).

Step-by-step explanation:

Here, given The perimeter of the square  = (36 x+44)

Now,as we know :

PERIMETER OF SQUARE = 4 x ( SIDES)

Simplifying the perimeter expression.

Take 4 common out of the expression (36 x+44), we get:

(36 x+44) =  4 (9 x + 11)

⇒ Perimeter of the square  =  4 x  (9 x + 11)

⇒4 x ( SIDES) = 4 x (9 x + 11)

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Hence, 4 x (9 x + 11) is an equivalent expression for the perimeter that shows the side length of the square is  (9 x + 11).

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