3 years ago

3x-2y=7-x+3y=-7What is the simultaneous answer?

Mathematics

1 answer:

charle [14.2K]3 years ago

3 0

Answer:

x = 5, Y = 4

Step-by-step explanation:

3x -2y = 7

-3x +9y = 21. (multiple the whole thing by 3 to get the xs to cancel)

7y = 28

y = 4

substitute y to find x

3x - 2(4) = 7

3x -8 = 7

3x = 15

x = 5

You might be interested in

If 1 inch = 50 miles how many miles is 8.5 in

GenaCL600 [577]

✧･ﾟ: *✧･ﾟ:* *:･ﾟ✧*:･ﾟ✧

Hello!

✧･ﾟ: *✧･ﾟ:* *:･ﾟ✧*:･ﾟ✧

❖ 8.5 in = 425 miles

If 1 mi = 50 inches, multiply by 8.5:

50 x 8.5 = 425

~ ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘꜱ! :) ♡

~ ᴄʟᴏᴜᴛᴀɴꜱᴡᴇʀꜱ

7 0

3 years ago

A department store sells a pair of shoes with a 92% markup. If the store bought the pair of shoes for $55.25, what is the sellin

Paha777 [63]

Answer go G de fed hey dad h he fed G d G fed F t G d hey r r

8 0

3 years ago

HELP ME PLEASE!!!

Komok [63]

Hope this helps you#!!

7 0

3 years ago

Is my answer A or d??

alexira [117]

Answer:

Step-by-step explanation:

The answer must have a negative slope because the graph is decreasing.

The y-intercept is 10. The equation must have +10 at the end.

y = -3x + 10

8 0

3 years ago

Use the formula to find the slope of the line that passes through these two points. Show your work.

Dafna1 [17]

Answer:

Solution given:

$(x_1,y_1)=(1,2)$

$(x_2,y_2)=(7,7)$

now

slope: $\frac{y_2-y_1}{x_2-x_1}=\frac{7-2}{7-1}=\frac{5}{6}$

Slope: 5/6

6 0

3 years ago

3x-2y=7-x+3y=-7What is the simultaneous answer?​

3x-2y=7-x+3y=-7What is the simultaneous answer?