Question

15×=21(1+9×)-3
help pleseee ​

Answer 1

Respuesta:

x = 3/-29 wich equals -0.10344827586206896551724137931034

Explicación paso a paso:

Seems like you need to solve for x here, so you start by doing all the available operations before moving numbers to the other side.

15x = 21(1 + 9x) - 3

15x = 21 + 189x - 3

15x = 18 + 189x

15x -189x = 18

-174x = 18

x = 18/-174 or 3/-29

x = -0.103

Now we prove that x = 3/-29

5(3/-29) = 21(1 + 9(3/-29)) - 3

-1.551 = 21(1 + (-0.931)) - 3

-1.551 = 21 - 19.551 - 3

-1.551 = 1.449 - 3

-1.551 = -1.551 ← yay!