Which equation best represents this statement?

Negative five-sixths times the sum of a number and six and two tenths is seven and five-tenths.
Negative StartFraction 5 over 6 EndFraction x + 6.2 = 7.5
Negative StartFraction 5 over 6 EndFraction + 6.2 x = 7 and StartFraction 5 over 10 EndFraction
Negative StartFraction 5 over 6 EndFraction (x + 6.2) = 7.5
(Negative StartFraction 5 over 6 EndFraction + x) (6.2) = 7 and StartFraction 5 over 10 EndFraction

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.