3 years ago

Solve the system using addion 7x+2y=-13 -7x+y=25

Mathematics

1 answer:

larisa [96]3 years ago

5 0

Answer:

x = -3

y = 4

Step-by-step explanation:

7x + 2y = -13

-7x + y = 25

3y = 12

-7x + y = 25

y = 4

-7x + 4 = 25

y = 4

-7x = 21

y = 4

x = -3

there is only 1 solution for this equation is (-3,4)

You might be interested in

Can someone help me?!?

gladu [14]

Answer:d

Step-by-step explanation:he only gets charged 20 dollars every month and 2.50 per gigabyte so the 2.50 gets multiplyed by g

3 0

3 years ago

Solve the inequality 13 > 3x + 1

Ivenika [448]

4 > x

step by step explanation:

13 > 3x + 1
-1 -1
12 > 3x
/3 /3
4 > x

3 0

3 years ago

Read 2 more answers

In the first quadrant, you start at ( 6, 5 ) and move 3 units left .

Verdich [7]

Answer:

(3,5)

∧

this is x number

Step-by-step explanation:

the x number is left and right movement. if you move 3 units left you would subtract 3 from the x number. so 6-3=3 and you don't have to do anything on the y value because you don't move it.

3 0

3 years ago

I need this question done by March 4,2019<br><br> What is the answer to<br> a + 2 = 5 + 4a ?

Ronch [10]

A = -1

Hope this is right

3 0

3 years ago

Read 2 more answers

Consider the mechanism. Step 1: 2 A − ⇀ ↽ − B + C 2A↽−−⇀B+C equilibrium Step 2: B + D ⟶ E B+D⟶E slow Overall: 2 A + D ⟶ C + E 2A

gulaghasi [49]

Step-by-step explanation:

Below is an attachment containing the solution .

8 0

3 years ago