which number satifies the equation 21=26 - x? 47 22 4 5?

Quite obviously "5"

21 = 26 - 5

21 = 26 - x
x = 26 - 21
x = 5

Answer: x = 5

Check:
21 = 26 - 5
21 = 21

21 = 26 - x
x = 26 - 21
x = 5

21 = 26 - x

Subtracy 26 from both sides.

(21 - 26) = -x

-5 = -x

Multiply both sides by -1 and you will get x = 5.

the answer is 5.

Ans: 5

21 = 26 - x
21+ x = 26
x = 26 - 21
= 5

Hope you get it=)

of course 5
21 = 26 - x
21 + x = 26 - x + x
21 + x - 21 = 26 - 21
x = 5

21 = 26 - x
21 + x = 26
x = 5

5 because 26-5 = 21
This is how to solve:-
21 = 26 - x
x = 26 - 21
x = 5

21-26=-5, -1*-x+-5*-1=5