2
C+ (-2)= 21= 21+2= 23+ (-2)= 21 23+ (-2)= 21 is the same as 23- 2= 21
Nooo... it equals 23
2+21=23 2*21=42 (* is another symbol for multiply)
21
No it equals 21
3.913
No. It's negative 19.23- 42______-19
26 - 21 = 5 or 24 - 23 = 1
7x = 21 x = 3
2x + 2 + 5x = 23 2x +5x = 23 -2 7x = 21 X = 3
21*23 = 483 21 * 1 = 21 23 * 1 = 23 23 * 1 * 21 = 483 :) Hope it helped!
Because 23 is a prime number, 21/23 is in its reduced form. You can make the fraction "un-reduced," so-to-speak, and multiply the numerator and the denominator by the same number. For example, multiply by 2/2 (which equals 1) so that the answer would be 42/46. 42/46 is an equivalent fraction to 21/23.