Answer:
The value of x is 7.
Step-by-step explanation:
First, you have to expand the brackets and then, solve it :
[tex] - 2( - x + 4) + 4x = 31[/tex]
[tex]2x - 8 + 4x - 3 = 31[/tex]
[tex]6x - 11 = 31[/tex]
[tex]6x = 31 + 11[/tex]
[tex]6x = 42[/tex]
[tex]x = 42 \div 6[/tex]
[tex]x = 7[/tex]
