maybe eight 21 - 5 = 16 = 2 x 8
5 + 2 + 3 + 7 + (21/7) = 20
16 + 5 = 21
There is no variable, and the equation is not valid.
22/21 = 1 1/21. The common denominator is 21, so 5/7 = 15/21, and 1/3 = 7/21. Add 15/21 + 7/21 = 22/21. Then change to mixed number.
maybe eight 21 - 5 = 16 = 2 x 8
If you mean 3n+5 = 21 then the value of n is 16/3
5 + 5 + 5 + 5 ≈ 21 the actual answer is 5*4≈21 JKJK ITS 25 jk its actually 25
No, 21- (5 plus 2) does NOT equal 23.
If x/3 = 7 then the value of x is 21
10 + 6 + 5 = 21 Here is it done in steps: 10+6+5=21 ^ 16 + 5 ^ 21
5 + 2 + 3 + 7 + (21/7) = 20
(Double plus 1 of 5) plus 5 = 16 Double plus 1 of (5 plus 5) = 21
21 + 8 / 5 = 21 + 8/5 = 21 + 13/5 = 223/5
21
21
Zero.