Q: What is -x²- 5x when x equals -3?

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3 + 5x = 38 -> 5x = 35 -> x = 7

5x-3 = 37 5x = 37+3 5x = 40 x = 8

4 + 5x = 1 5x = 1 - 4 5x = -3 x = -3/5 x = -0.6

3=x+3-5x subtract 3 from both sides 0=x-5x combine 0=-4x 0=x

-5x=3+y x=-1/5y-3/5

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3 + 5x = 38 -> 5x = 35 -> x = 7

5x-3=2-8x 5x-3+3=2-8x+3 5x=5-8x 5x+8x=5-8x+8x 13x=5 x=5/13

5x-5 = -3 5x = -3+5 5x = 2 x = 2/5

5x+3 = -17 5x = -17-3 5x = -20 x = -4

5x-3 = 37 5x = 37+3 5x = 40 x = 8

5x-3 = 11+12x 5x-12x = 11+3 -7x = 14 x = -2

5x + 3 = -12 5x =-12-3 =-15 x = -3

4 + 5x = 1 5x = 1 - 4 5x = -3 x = -3/5 x = -0.6

If: y = 5x and y = 3 -x Then: 5x = 3 -x => 5x +x = 3 => 6x = 3 => x = 1/2 By substitution point of contact is at: (1/2, 5/2)

3=x+3-5x subtract 3 from both sides 0=x-5x combine 0=-4x 0=x

-5x=3+y x=-1/5y-3/5

-6x+3 = -7-5x 7+3 = 6x-5x 10=x