Q: What is The Sum for -2x And 8?

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7 and 8. You know that the sum of any two consecutive whole numbers, x and x +1, is 2x +1 2x + 1 = 15 2x = 14 x = 7

(2x) + (2x+2) + (2x+4) + (2x+6) + (2x+8) = 26010x + 20 = 26010x = 240x = 24The integers are 48, 50, 52, 54, and 56

If: 2x+8 = 7 then x = -1/2

Set up the equation and solve: 8x + 8 = 2x +38 (subtract 2x and 8 from both sides of the equation) 6x = 30 (divide both sides of the equation by 6) x = 5

2x + 4

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Four consecutive odd integers: [2x-1], [2x+1], [2x+3], [2x+5].Their sum: (2x-1) + (2x+1) + (2x+3) + (2x+5) = 8x + 8 = 8(x+1) = 28,458,968(x+1) = 28,458,968/8 = 3,557,371x = 3,557,370The numbers are:7,114,739=> 7,114,741

-2(x + 9) = -8 -2x - 18 = -8 -2x = 10 x = -5

4(x + 5) = 2x + 8 4x + 20 = 2x + 8 2x = -12 x = -6

7 and 8. You know that the sum of any two consecutive whole numbers, x and x +1, is 2x +1 2x + 1 = 15 2x = 14 x = 7

(2x) + (2x+2) + (2x+4) + (2x+6) + (2x+8) = 26010x + 20 = 26010x = 240x = 24The integers are 48, 50, 52, 54, and 56

Sum Numb!

If: 2x+8 = 7 then x = -1/2

If the sum of a number and 4 is (X + 4) then twice that is 2(X + 4) which is 2X + 8

3x + (-4) â‰¥ 2x + 8

Set up the equation and solve: 8x + 8 = 2x +38 (subtract 2x and 8 from both sides of the equation) 6x = 30 (divide both sides of the equation by 6) x = 5

4*(2x + 8) = 32

2x + 4