Question

math help

Answer 1

@AZ

Answer 2

You need to use the formula

a*b = c*d

Answer 3

how do i find b

Answer 4

you have to plug in whatever was given to you in your image

a is 15
b is x+3
c is 2x
d is 12

so

a*b = c*d

can you plug it all in and solve for 'x'

Answer 5

well 2x time 12 = 24x

Answer 6

that's good so now we have

15 * (x+3) = 24x

do you remember how to distribute?
we need to distribute the 15 into the parenthesis

Answer 7

so 15 times 3?

Answer 8

45

Answer 9

and 15 times x

you have to multiply with each thing inside the parenthesis

so 15x + 45 = 24x

Answer 10

so 60x = 24x

Answer 11

no... you cannot add apples and oranges

15x has an 'x'

45 is just a number

24x has an 'x'

so you can subtract 15x on both sides

what is 24x - 15x = ?

Answer 12

9

Answer 13

is it just 9

or is it something more?

psst: what happened to the x?

Answer 14

9x

Answer 15

sorry

Answer 16

much better

and so now we have

45 = 9x

divide 9 on both sides

what is x equal to

Answer 17

5

Answer 18

so thats the answer?

Answer 19

yup!

Answer 20

thx <3

Answer 21

You're welcome