Question

Solve 8 = 2x + 4.

x = −4

x = −1

x = 0

x = 7

Answer 1

Wait the actual equation is

Answer 2

first:
take four from both sides,

then:
divide both sides by two

Answer 3

I'm trying to post the actual equation but the buttons for the equation draw and attach file are messing up. The actual equation is 8=2^x+4 the x+4 is an exponent

Answer 4

(unfortunately OS isn't working properly)

Answer 5

Well you know what I mean right?

Answer 6

8=2^{x+4}

can you rewrite the lefthand side (eight) as a power of two?

Answer 7

What do you mean? :/

Answer 8

well if it was 9 you could rewrite it as 3^2

Answer 9

(that is nine as a power of three)

can you rewrite eight as a power of two?

Answer 10

2^2?

Answer 11

4^2 sorry openstudy is running so weirdly for me

Answer 12

nope 2^2=4

and 4^2 = 16



2^? = 8

Answer 13

3

Answer 14

yeah 2*2*2=8 so 8=2^3

Answer 15

now you can write

8=2^3=2^{x+4}

comparing the indexes

3=x+4

Answer 16

Thank you so much~

Answer 17

can you solve for x now?