Question

A system of equations is given below:

y = –2x + 1
6x + 2y = 22

Which of the following steps could be used to solve by substitution?

Answer 1

- 6x + 2 (-2x+1) = 22
- -2x + 1 = 6x + 2y
- 6 (-2x + 1) + 2y = 22
- 6(y =-2x + 1

Answer 2

@campbell_st @skittles_for_life6422

Answer 3

@TheSmartOne Help Please

Answer 4

@freckles

Answer 5

someone please help me

Answer 6

I'm here.

Answer 7

One sec. Checking.

Answer 8

okay

Answer 9

oh those are choices not your work :p

Answer 10

which choice do you think it is?

Answer 11

a

Answer 12

a is awesome
that method you choice is call solving the system by substitution
y=-2x+1
so you enter this y into the next equation and yes you do get
6x + 2y = 22
that this becomes
6x+2(-2x+1)=22

:)

Answer 13

so its right?

Answer 14

yes it is called solving the system by substitution as I said above :P