0
x=3
actually its 7
Well... assuming that you mean x + x + x = 21, x would be 7. But if its x + y + z = 21, there would be an astounding amount of answers. So, the answer that I would give that is the most specific would be that 7 plus 7 plus seven equals 21.
9 + 10
19+2
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What type of lines are these x plus 2y equals 7 and 2x plus 4y equals 21?
They are parallel lines.
What is the solution of the following linear system 4x-3y equals 3 2x plus 5y equals 21?
x = 3, y = 3
If 5 plus 3 plus 2 equals 151012 and 9 plus 2 plus 4 equals 183662 and 8 plus 6 plus 3 equals 482466 and 5 plus 4 plus 5 equals 202504 then 7 plus 2 plus 5 equals?
143542make the variables X plus Y plus Zthe solution is X*Y,X*Z, then (X+Z)*Y flipped7*2=147*5=35(7+5)*2=24 flipped =421435425*3=155*2=10(5+2)*3=21...flipped =12151012
2x-3 equals 10x plus 21?
2x-3=10x+21 2x-3-2x=10x+21-2x -3=8x+21 -3-21=8x+21-21 -24=8x -3=x
What is 5p - 1 equals 2p plus 20?
5p-1=2p-20 3p=21 p=7
What is 21 plus 21 plus 19 plus 19 equals what?
21+21+19+19=80
What is 31 plus 21 equals?
The mathematical statement 31 plus 21 equals 52 as a total.
What is 10 plus 21 equals?
The statement 10 plus 21 equals 31 in total. It can also be written as 10 + 21 = 31.
What is 12 plus 9 equals?
12 plus 9 equals 21.
What is the answer for plus 45 plus 21 equals?
66.
IF 2 plus 3 equals 10 7 plus 2 equals 63 6 plus 5 equals 66 8 plus 4 equals 96 13 plus 8 equals?
273 13+8 = 21 and 13*21 = 273
What plus 13 equals -8?
5
What is the answer to C over 3 plus 4 equals 11?
The answer is 21 because if 21 is divided by 3 it equals 7 plus 4 equals 11.
21 plus 10 equals?
21 + 10 = 31
What is the property of 21 plus 0 equals 21?
identity
18 plus 23 equals 20 plus?
21
What is 9 plus 5 plus 7 equals?
21
