Question

Solve the equation. Show your work.

45 = 3b + 69

Answer 1

isolate 3b first.

Answer 2

thus, get rid of 69 on right side.

Answer 3

69 is being added on right side, thus, we will use opposite operation of addition,

Answer 4

@violy meant to say that :
\[\large{\color{red}{45-69=3b+69-69}}\]

what do you get @daboss33 ?

Answer 5

45 - 69 = -24

Answer 6

where did 3b go @daboss33 ?

Answer 7

i think daboss is doing left side first.

Answer 8

you put it aside til you get the first answer then you bring it back??

Answer 9

do you mean, -24=3b ?

Answer 10

<-- scracthing head umm no

Answer 11

<-- lost again

Answer 12

let me give you an example: 6 = 2b + 4 . First thing is to subtract 4 from both sides. thus, 6-4 = 2b + 4 -4 ===> 2 = 2b + 0 or 2 = 2b.

Answer 13

ok leave that

@daboss33 if you have 69 cakes and you ate all the cakes , what you have now?

Answer 14

lol a fat stomach and nothing left to snack on

Answer 15

also note that, any number minus itself is zero.

Answer 16

@daboss33 so no cakes left right?

Answer 17

ok i understand that much its the letters that confuse me

Answer 18

right

Answer 19

so wht we had :
\[\large{\color{blue}{45-69 = 3b + 69-69}}\]
\[\large{45-69=3b+0}\] right ?

Answer 20

ok i think i understand it but i still have to find out what 3b is right?

Answer 21

right so first tell me 45 - 69 = ?

Answer 22

3b

Answer 23

no calculate that

Answer 24

-24

Answer 25

great

Answer 26

now we have
\[\large{\color{green}{-24=3b}}\]
divide both sides by 3

Answer 27

that is :
\[\large{\color{blue}{\frac{-24}{3}=\frac{3b}{3}}}\]

Answer 28

what do you get now?

Answer 29

ok i got stuck there i know 3 go into 3 1 time but you cant divide a neg number with 3

Answer 30

we can do that @daboss33

Answer 31

can we write -24 as -1 * 24 ?

Answer 32

so it would be -1/b then??

Answer 33

\[\large{\color{brown}{\frac{-1*24}{3}=\frac{3b}{3}}}\]
\[\large{\color{blue}{-1*\frac{24}{3}=\frac{3}{3}*b}}\]
\[\large{\color{brown}{-1*8=b}}\]
\[\large{\color{orange}{-8=b}}\]

Answer 34

got it?