To find the value of 8(3x+4)-x when x = 5, we can substitute x = 5 into the expression and then simplify it step by step.
Given expression: 8(3x + 4) - x
Substitute x = 5 into the expression:
8(3*5 + 4) - 5
Now, calculate the value inside the parentheses first:
8(15 + 4) - 5
8(19) - 5
Next, multiply 8 by 19:
8 * 19 = 152
Finally, subtract 5 from 152:
152 - 5 = 147
Therefore, the value of the expression 8(3x+4)-x when x = 5 is 147.
