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Q: -4 x - 7 equals 16?

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Yes, because: x+7 = 23 x = 23-7 x = 16

2x + 7 + 2x = 23 4x + 7 = 23 4x = 16 x = 16/4 x = 4

If: -x-3y = -4 and 3x+5y = 16 Then: x = 7 and y = -1

16 x 3/4 = 12

(7x - 4)(x + 1 ) making x = either 4/7 or -1 Check: (7 x 16/49) + 12/7 = 16/7 + 12/7 = 4 ok 7 + (-3) = 4 ok...and there you have it.

If x=4 then 2x+7 =

16 times 7 equals 112.

x = 7

20 - 4 = 16

If the x=4, then its equivelent to 12 + 4, which equals 16.

4 x 4 = 16

16 = 1 x 16 = 2 x 8 = 4 x 4

7

8 x 2 = 16 4 x 4 = 16

x equals 4

no.. x equals 11

4 x 4 = 16

49/16 = (7^2)/(4^2) = (7/4)^2 = ((4/7)^-1)^2 = (4/7)^-2 Thus as (4/7)^2 = 49/16 and 49/16 = (4/7)^-2 (4/7)^x = (4/7)^-2 Therefore x = -2.

3

16 * x = 64 x= - 64 /16 x = 4 therefore 16 * 4 = 64

4

16

20

1 x 16, 2 x 8, 4 x 4, 8 x 2, 16 x 1.

7=x