Question

Solve forx: 10 (2x - 4) + 5 = 2r - 8 1 ОА. x =- 19 10 O B. x= =- 1 С O c. x = 1 O D. x = =​

Answer 1

Option D

Explanation:

Given expression is,

10(2x - 4) + 5 = 2x - 8

By using distributive rule,

20x - 40 + 5 = 2x - 8

20x - 35 = 2x - 8

Now we subtract 2x from both the sides of the equation

20x - 35 - 2x = 2x - 8 - 2x

18x - 35 = -8

By adding 35 on both the sides of the equation

18x - 35 + 35 = - 8 + 35

18x = 27

By diving with 18 from both the sides of the equation

`(18x)/(18)=(27)/(18)`

x =
`(3)/(2)`

Therefore, Option D will be the correct option.