3 years ago

3x-30=y 7y-6=3x using elimination

Mathematics

1 answer:

Hitman42 [59]3 years ago

3 0

Answer:

x=12, y=6. (12, 6).

Step-by-step explanation:

3x-30=y

7y-6=3x

----------------

7y-6-30=y

7y-36=y

7y-y-36=0

6y-36=0

6y=0+36

6y=36

y=36/6

y=6

7(6)-6=3x

42-6=3x

36=3x

x=36/3

x=12

You might be interested in

10x−15=−5x−20 Solve for x.

Nesterboy [21]

The answer would be -5x-20+15/10

please can i have a brainliest

3 0

3 years ago

Read 2 more answers

Whats <br> 3(x+4) In simplyed.

Setler [38]

Answer:

3x + 12

Step-by-step explanation:

Distribute the 3

5 0

3 years ago

Read 2 more answers

8w-15=57 two step equations

insens350 [35]

Answer:

w=9

Step-by-step explanation:

Our equation is: 8w-15=57

Add 15 to both sides

-15 is now gone because we added 15 so it would be zero

and we have 72 because 15 plus 57 is 72

Now we have:

8w=72

Divide by 8 on both sides

8w cancels out to just w

and 72 divided by 8 is 9

And you're left with:

w=9

7 0

3 years ago

Which of these expressions is the simplified form of the expression (Sin(x)/1-cos^2(x)) tan(x/2)?

FromTheMoon [43]

Answer:C

1/1+cos(x)

Step-by-step explanation:

5 0

3 years ago

Complete each family of facts.<br>5 5 10

Sladkaya [172]

Answer:

1,5

1,5 and

1,2,5,10

Step-by-step explanation:

7 0

4 years ago