Question

Solve the system of equations by substitution. What is the solution for x?
2x + y = 1

4x + 2y = -2

A) x = 0
B) x = 2
C) There is no x value as there is no solution.
D) x can be any value as there is an infinite number of solutions.

Answer 1

@team_cuban

Answer 2

I am sorry I forgot how to do system of equations by substitution unfortunately.

Answer 3

do you know anyone who is good at these and could help me out?

Answer 4

@pooja195 @welshfella

Answer 5

These people may be able to help.

Answer 6

Whats the opposite of 2?

Answer 7

any ideas?

Answer 8

-2

Answer 9

good so we multiply
-2(2x + y = 1)
4x + 2y = -2

\[\huge~\rm~-2(2x + y = 1) \]

Answer 10

Distribute

Answer 11

I have no idea

Answer 12

-2 x 2 = ?

Answer 13

-4

Answer 14

-2 x y = ?

Answer 15

I don't know

Answer 16

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

\[\huge~\rm~-2(2x + y = 1) \]
\(\huge\color{red}{-4x-2y=-2}\)

Answer 17

−4x−2y=−2
4x+2y=−2
Heres the fun part :D
-4+4=?
-2+2=?
-2+-2=?

Answer 18

can you do that for me... im still a little lost..

Answer 19

-4+4=?

Answer 20

0

Answer 21

-2+2=?

Answer 22

0

Answer 23

-2+-2?

Answer 24

-4

Answer 25

When we have a number = a DIFFERENT number we have no solution its not possible to solve
0=-4
would make it so that there is no solution

Answer 26

so C?

Answer 27

ye

Answer 28

See @pooja195 is amazing in Algebra. And I am great in geometry. GOOD WORK @pooja195

Answer 29

:) thanks :)

Answer 30

No Problem