-9x - 3y = 6 find the value of y when x equals -2

Mathematics

2 answers:

Rainbow [258]3 years ago

7 0

Answer:

y = 4

Step-by-step explanation:

-9×-2 = 18

18 - 3y = 6

18 - 6 = 12

12 ÷ 3 = 4

18 - 12 = 6

That's the way I did it. I hope that made sense!

belka [17]3 years ago

4 0

Answer:

y=4

Step-by-step explanation:

$-9x-3y=6\\18-3y=6\\-3y=-12\\y=4$

You might be interested in

Find the degree of the monomial. 3b2c

garik1379 [7]

Answer:

Step-by-step explanation:

The degree of the given monomial = 2 + 1 = 3

8 0

3 years ago

Derivative of this function Y= -7X³ -8X² +6X +3

zaharov [31]

In general, the derivative of a single term Ax^(n) is A n x^(n-1) .

And the derivative of a sum of many terms is the sum of the derivatives
of the individual terms.

Using these two rules, the derivative (with respect to 'x') of the expression
in the question is . . .

 Y' = -21x² - 16x + 6

7 0

3 years ago

The volume of a 10 ounce box of cheerios is 258.75in3. the length of the box is 4 inches less than the height and the width is 3

Marina86 [1]

Answer:

Height of the box = 11.5 in

Step-by-step explanation:

Let h be the height of the box.

Assuming the volume of the Box is $258.75\ in^3$ .