Answer:
Step-by-step explanation:
Ix-4I+3=3
subtracting 3 from both sides (*as per general practice in equations unknown are on one side and constants on the other side or simply taking 3 to other side of the equation)
Ix-4I+3-3=3-3
Ix-4I=0
x-4=0
x-4+4=0=4
x=4
checking:
I4-4I+3=3
I0I+3=3
3=3
