The solution to the expression 8(3 + 5x) + (7x + 4) when x = 3 is 169.
To find the solution to the expression 8(3 + 5x) + (7x + 4) when x = 3, we can simply substitute x = 3 into the expression and calculate the result:
8(3 + 5(3)) + (7(3) + 4)
= 8(3 + 15) + (21 + 4)
= 8(18) + 25
= 144 + 25
= 169
Therefore, the solution to the expression 8(3 + 5x) + (7x + 4) when x = 3 is 169.