2(2x - 4) + x = 7
First of all, apply the distributive property for the parenthesis:
a(b - c) = ab - ac
So, = 4x - 8 + x = 7
Now, bring like terms together:
4x + x = 7 + 8
5x = 15
x = 15/5
x = 3
In short, Your Final Answer would be: 3
Hope this helps!