Hey there!
4x = 5x - 12
5x - 12 = 4x
ADD 4x to BOTH SIDES
5x - 12 + 4x = 4x + 4x
SIMPLIFY IT!
x - 12 = 0
ADD 12 to BOTH SIDES
x - 12 + 12 = 0 + 12
CANCEL out: -12 + 12 because it gives you 0.
KEEP: 0 + 12 because it gives you the value of the x-value.
NEW EQUATION: x = 0 + 12
SIMPLIFY IT!
x = 12
Therefore, your answer is: x = 12
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
