We can use the FOIL method to solve.
(5x + 3)(7x - 7)
(5x * 7x) + (5x * -7) + (3 * 7x) + (3 * -7)
35x - 35x + 21x - 21
0 + 0
0
Best of Luck!
 
        
             
        
        
        
By using the Distributive Property, you would multiply 3 into the parenthesis (3 · x and 3 · -4)
3(x - 4) = 24
3x - 12 = 24
Then, you would solve like any normal one-step equation.
3x - 12 = 24
      +12   +12
__________
3x      36
__  =  __
 3        3
x = 12, which is your final solution.
If you need any further explanations, please ask me :)
 
        
                    
             
        
        
        
Answer:
Try taking a screen shot as this is indecipherable. 
Step-by-step explanation: