All categories

3 years ago

What is the result of adding these two equations? - 2x + y = -5 - 2x - 4y = 6

Mathematics

2 answers:

Angelina_Jolie [31]3 years ago

6 0

Answer:

-4x-3y=1

Step-by-step explanation:

when adding the wo equations, u must add like ters. -2x+-2x is -4x. and positive y+ -y= -3y and-5+6=1. so if u put it all together after adding all integers you get -4x-3y=1

Gelneren [198K]3 years ago

4 0

Answer: 5y = -11

Step-by-step explanation:

-2x + y = -5

(-2x - 4y = 6) -1

-2x + y = -5

2x + 4y = -6

System by elimination method

0 + 5y = -11

5y = -11

You might be interested in

Somebody please give me the answer (AND DO NOT GIVE ME A DOWNLOAD LINK. I AM NOT RISKING MY COMPUTER FOR JUST A MATH QUESTION.).

lianna [129]

Answer:

yea i know bitly is a scam

Step-by-step explanation:

7 0

2 years ago

WHY must the same operation be performed on both sides of an equation?

lys-0071 [83]

Answer:When you are given a problem, the two sides are equal, so they are equally weighted. As long as you do the same thing on both sides, they remain the same weight. The only way that one side can become "more weight" on a side is if you make a math mistake, and thus the answer would not satisfy the original equation

Step-by-step explanation:looked it up... have a good day!

8 0

3 years ago

Can someone please help me!

german

I think it should be 90° since x is a right angle

3 0

2 years ago

How do I solve for the solution??<br>y = 3x +2<br>y = x + 1

Elis [28]

Answer:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:

(−1/2,1/2)

Equation Form:

x=−1/2,y=1/2

Step-by-step explanation:

7 0

3 years ago

What is the equation of the line that is

sladkih [1.3K]

Answer:

y = 1/2x - 7/2

Step-by-step explanation:

y = 1/2x + b

-3 = 1/2(1) + b

-3 = 1/2 + b

-7/2 = b

5 0

2 years ago