Ask question

Ask question

All categories

2 years ago

7

Y=-3x - 4 y= 2x + 1

1 answer:

Naily [24]2 years ago

4 0

$\left \{ {{y=-3x-4} \atop {y=2x+1}} \right. \\\\ substitution\ method\\\\
-3x-4=2x+1\ \ \ | subtract\ 2x\\\\
-5x-4=1\ \ \ | add\ 4\\\\
-5x=5\ \ \ | divide\ by\ -5\\\\
x=-1\\\\
y=2x+1=2*(-1)+1=-2+1=-1\\\\
Solution:\\ \left \{ {{y=-1} \atop {x=-1}} \right.$

You might be interested in

F(x) = x + 13, then evaluate f(-2)

Lubov Fominskaja [6]

F(x)= x+13
F(-2)= -2 +13
= 11

You plug in -2 for the x

7 0

2 years ago

PLEASE HELP! giving BRAINLIEST AND GIVE CORRECT ANSWER AND EXPLAIN!

Ghella [55]

<em>so</em><em> </em><em>the</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>2</em><em>0</em><em> </em><em>square</em><em> </em><em>centimeter</em><em>.</em>

<em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em>

3 0

2 years ago

Rita has 4 toy horses, 6 toy dogs, and 6 toy cats. She puts all of the toy dogs and cats away. How many toys does she put away?

Pepsi [2]

Answer:

12 toys

Explanation:

Rita put away 12 toys because she put away all of the toy dogs (6) and all of the toy cats (6). 6 + 6 = 12. So, she put away a total of 12 toys.

7 0

2 years ago

Ettiene solved a quadratic equation. His work is shown below.

kumpel [21]

Answer:

Ettienes error was in step 2 .

Step-by-step explanation:

Khan academy

5 0

2 years ago

What is f(5)?<br> A) -8<br> B) -1<br> C) 1<br> D) 8

Dvinal [7]

Answer:

-1

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers