x = 2, y = 3
The mathematical statement 31 plus 21 equals 52 as a total.
21+21+19+19=80
The statement 10 plus 21 equals 31 in total. It can also be written as 10 + 21 = 31.
12 plus 9 equals 21.
66.
273 13+8 = 21 and 13*21 = 273
5
The answer is 21 because if 21 is divided by 3 it equals 7 plus 4 equals 11.
identity
21 + 10 = 31
Rearrange the equations in the form of:- 6x-6y = 17-11 -4x+6y = 21 6x-6y = 6 -4x+6y = 21 Add both equatios together in order to eliminate y: 2x = 27 Divide both sides by 2: x = 13.5 Substitute the value of x into the equations to find the value of y: x = 13.5 and y = 12.5
21