Answer:
23
Step-by-step explanation:
5x + 3
If x = 4, then we can substitute the equation as
5(4) + 3
As the PEMDAS rules goes, we first have to multiply and divide before adding or subtracting.
So, we would first multiply 5(4), which is 20
Next, we can add 20 + 3, which would be 23
Hence, 5x + 3 would equal to 23 if x = 4
