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Q: How do you solve n2 equals 20 plus n by factoring?

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20

(20 - x)/5

To solve this one, subtract 50 from 180 and you'll have your answer.

To solve for x, we'd have to know what this expression equals.

If: 21 is a plus Then : x = 20

1 plus 19 equals 20 2 plus 18 equals 20 3 plus 17 equals 20 4 plus 16 equals 20 5 plus 15 equals 20 6 plus 14 equals 20 7 plus 13 equals 20 8 plus 12 equals 20 9 plus 11 equals 20 10 plus 10 equals 20 1 times 20 equals 20 2 times 10 equals 20 4 times 5 equals 20

y=16 x= -4

-7m + 20 = -17m - 1010m = -30m = -3

68

3x+5=20 3x=15 x=5

-3x + 5 = 20 -3x = 15 x = -5

Better formatting is cos(2x+20)=-0.5

6y3 + 8y2 - 15y - 20 is an expression, not an equation (or inequality). An expression cannot be solved.The expression factorises to (3y + 4)*(2y2 - 5)

20 plus 20 equals 4020 plus 20 = 40

Yes.

balance the equation 3x-x=20-6 3x-x=2x 20-6=14 2x=14 x=7

(2x - 5)(3x - 4)

3x^2=-20 so x^2=-20/3 this has no real roots but the plus of minus i(square root of 20/3) is a solution if we allow complex numbers.

4m+15=8m-5 or,4m=20 or,m=5

divide 20 by 10 which equals 2 the times 2 by 2 which equals 4

7x=20+20x collect terms containg x on one side and then factorize -13x=20 0r, x=-20/13

5x+1=20 5x=20-1 5x=19 5x/5=19/5 x=19/5

3w + 4 = 24 .......- 4... - 4 .......3w = 20 .......÷3 ...÷3 .........w = 20/3 or 6.6667

205

Of course!