To solve for this, we need to use the Distributive Property, which allows us to multiply the number/variable outside of the parenthesis by all inside numbers/variables.
For example, 1(2+3) can be distributed by:
1(2) + 1(3), which is 2 + 3, simplified as 5.
Using the information I've provided, we can solve this.
7(4x -6) = 28
Use the Distributive Property.
7(4x) + 7(-6)
28x -42 = 28 is now our equation.
Add 42 to both sides to get 28x by itself.
28x = 70
Divide both sides by 28 to solve for x.
x = 2.5
I hope this helps!