Question

+х=21

Answer 1

Ответ:

х=1

Объяснение:

$\sqrt{256}+\sqrt{16} +x=21$

16+4+х=21

х=21-16-4

х=1

Answer 2

To solve the equation +х = 21, we need more information about the nature of the variable "x." The equation you provided doesn't have a clear mathematical operation represented by the "+" sign. Please provide the correct equation or specify the operation you intended to use, such as addition (+), subtraction (-), multiplication (*), or division (/), to help me assist you better.