(3x – 9) + x + (x + 28) = 184.

x= 33

Step-by-step explanation: First, combine like terms.

5x +19 = 184

Isolate x by subtracting 19 from each side.

5x = 165.

Divide by 5 on each side.

X = 33

x = 33

Step-by-step explanation:

(3x - 9) + x + (x + 28) = 184

3x - 9 + x + x + 28 = 184

5x - 9 + 28 = 184

5x + 19 = 184

     -19      -19

5x = 165

/5      /5

x = 33

don't know sorry bru

step-by-step explanation:

hello from mrbilldoesmath!

answer:   (7x + 6y) ( 49x^2 - 42xy + 36y^2)

discussion:

in general, the factorization of a^3 + b^3 is

a^3 + b^ 3 = (a + b) ( a^2 - ab + b^2)

in our case note that 343 = 7^3 and 216 = 6^3 so the equation becomes:

343x^3 + 216y^3 = (7x)^3 + (6y)^3

if you think of a (above) as 7x and b as 6y the factorization becomes

343x^3 + 216y^3 =

((7x + 6y) (   (7x)^2 - 7x*6y + (6y)^2)   =

(7x + 6y) ( 49x^2 - 42xy + 36y^2)

you,

mrb

(a + b) (a^2 - a b + b^2)