Q: What is 21 X 4?

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x/4 + 5 = -1 (4)x/4 +(4)5 = -1 x+20 = -1 -20 -20 x= -21 x= -21

4 x 21 = 84 = (8 x 10) + (4 x 1)

x-3-7x=21 -6x=21+3 6x=-24 x=-4

1 x 21 = 21 2 x 21 = 42 3 x 21 = 63 4 x 21 = 84 5 x 21 = 105 6 x 21 = 126 7 x 21 = 147 8 x 21 = 168 9 x 21 = 189 10 x 21 = 210 11 x 21 = 231 12 x 21 = 252 ...

You have x+4=25 so you minus the four from four and you minus the four from the 25 . and then you get 21 so it is x=21

Related questions

21 + (4 x 2) = 29 (21 + 4) x 2 = 50

21 x 4 = 84

x/4 + 5 = -1 (4)x/4 +(4)5 = -1 x+20 = -1 -20 -20 x= -21 x= -21

4 x 21 = 84 = (8 x 10) + (4 x 1)

x2 + 8x - 5 = 0 ∴ x2 + 8x + 16 = 21 ∴ (x + 4)2 = 21 ∴ x + 4 = ± √21 ∴ x = -4 ± √21

x-3-7x=21 -6x=21+3 6x=-24 x=-4

1 x 21 = 21 2 x 21 = 42 3 x 21 = 63 4 x 21 = 84 5 x 21 = 105 6 x 21 = 126 7 x 21 = 147 8 x 21 = 168 9 x 21 = 189 10 x 21 = 210 11 x 21 = 231 12 x 21 = 252 ...

((1/3) x 4 )/21 = (4/3)/21 = 4/63

84

17

I think one or both of those have to be negative. -3 + 7 = 4 -3 x 7 = -21 3 + -7 = -4 3 x -7 = -21 7 x 3 = 21 7 - 3 = 4 It also works if you subtract.

You have x+4=25 so you minus the four from four and you minus the four from the 25 . and then you get 21 so it is x=21