Q: If 10 x is 5 more than 10 what is the value of 2x?

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y = 2x + 5 17 = 2x + 5 X = 6

No. For 0 < x < 2, 2x is larger.

If: 3x+20 = 2x-10 Then: x = -30

9+4x=2x-1 2x=-10 x=-5

It is: 2x+4 = 8 and the value of x is 2

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If 10x is 5 more than 10 then 10x = 15 so that x = 15/10 = 1.5 And so 2x = 2*1.5 = 3.

Any pair of numbers where the 'y' is 5 more than the 'x'. There are an infinite number of suitable pairs. 2y-2x=10 2y-2x+2x=10+2x 2y=2x+10 divide both side by 2. y=x+5

y = 2x + 5 17 = 2x + 5 X = 6

No. For 0 < x < 2, 2x is larger.

If: 3x+20 = 2x-10 Then: x = -30

They are worth the total value of the bills: 2x$1=$2 2x$5=$10 2x$10=$20 2x$20=$40 2x$50=$100 2x$100=$200

2x - 6 = 4 2x = 4 + 6 = 10 x = 10/2 = 5 ∴ x = 5

9+4x=2x-1 2x=-10 x=-5

7 + 2x = x + 10 so 2x - x = 10 - 7 x = 3

It is: 2x+4 = 8 and the value of x is 2

2x -6 = 4 then 2x = 4 +6 x=10/2 = 5

-2x + 4 < 10 -4 -4 --------------------- -2x < 10 --- ---- (divide) -2x -2x ---------------- -x > -5 (switch the sign when you divide by a negative) Hope that helps :)