All categories

3 years ago

3x − 6y = –6 x = 2 solve using substitution.

Mathematics

1 answer:

nordsb [41]3 years ago

3 0

Answer:

y=2

Step-by-step explanation:

First, you substitute x with 2.

3(2)-6y=(-6)

Then, you multiply:

6-6y=(-6)

Next, you subtract 6 from -6. So, the first 6 gets crossed out because of inverse of operation.

-6y=-12

Finally, you divide -6 to both sides of the equation to get y=2

You might be interested in

1. Practicando: expresa en lenguaje algebraico.

Natasha_Volkova [10]

Answer:

Part 1) $3n$

Part 2) $4n$

Part 3) $\frac{2}{3}n$

Step-by-step explanation:

<u><em>The question in English is</em></u>

Expressed in algebraic language.

Symbolically write the following expressions:

Three times a number:

Four times a number:

Two-thirds of a number

Let

n ----> the number

Part 1) we have

Three times a number:

we know that

The algebraic expression is equal to multiply 3 by the number n

$3n$

Part 2) we have

Four times a number:

we know that

The algebraic expression is equal to multiply 4 by the number n

$4n$

Part 3) we have

Two-thirds of a number

we know that

The algebraic expression is equal to multiply the fraction 2/3 by the number n

$\frac{2}{3}n$

8 0

4 years ago

If katherine get 20 bottles and she needs to give 5 to freddy how much is more

otez555 [7]

Answer:

15 bottles are left

Step-by-step explanation:

we say:

20 bottles

- 5 bottles

15 bottles

5 0

3 years ago

Read 2 more answers

If 5 people meet and shak each other's hands, how many handshakes will there be

coldgirl [10]

There will be 15 handshakes :). Hope it helps!

4 0

4 years ago

ABCD is a parallelogram, find the value of y

gregori [183]

Answer:

Step-by-step explanation:

angles A and B should add up to 180, so A must be 40, and because it is a parallelogram the anlge across from it should also equal 40. 33+7=40.

5 0

3 years ago

What is 7/10 as a decimal and a percent?

AlekseyPX

7 / 10 = 0.70 = 70%

6 0

4 years ago

Read 2 more answers