Question

The incomplete work of a student to solve an equation is shown below:

Step 1: 2x + 8 = 2
Step 2: ?
Step 3: x = −6 ÷ 2
Step 4: x = −3

What is the missing Step 2?

Answer 1

a: 2x = −6
b:2x = 6
c:2x = 10
d: 2x = −10

Answer 2

The student subtracted 8 from both sides and then divided 2 from both sides

Answer 3

Ok I got that but than which answer is it? I'm confused... @amanda0618

Answer 4

a

Answer 5

Thanks can I get help on a few more I really struggle with this!
@coolshava

Answer 6

yeah

Answer 7

Thank you so much!

Answer 8

it helps to put it in a new thread.

Answer 9

is it the same type of problem?

Answer 10

Which statement is true for the equation 2x − 2x − 7 = −7?
It has infinitely many solutions.

It has two solutions.

It has one solution.

It has no solution.

Answer 11

it has infinitely many. any number could plug in, because it cancels it out.

Answer 12

I have no idea how those ?? gets in there can you see them too?

Answer 13

I see them too

Answer 14

A pencil at a stationery store costs $1, and a pen costs $1.50. Stefan spent $7 at the store. He bought a total of 6 items. Which system of equations can be used to find the number of pencils (x) and pens (y) he bought?

x + 1.5y = 7
x + y = 6

1.5x + y = 7
x = 6y

x + 2y = 7
6x = 1.5y

2x + y = 7
6x = 1.5y

Answer 15

first one

Answer 16

A system of two equations is shown below:

Equation C: a = 3b + 6
Equation D: a = 7b − 1

What value of a can be substituted into equation D to solve the system of equations?

3b

7b

3b + 6

7b − 1

Answer 17

@alyisnumber1

Answer 18

c, the third one.

Answer 19

put it on the left, to make it equal to 7b-1

Answer 20

ok Thanks

Answer 21

Which statement is true for the equation 5n − 4 = 5n − 3?

It has infinitely many solutions.

It has two solutions.

It has one solution.

It has no solution.

Answer 22

@coolshava

Answer 23

@alyisnumber1