Hey there!
9(u + 2) = 63
9u + 18 = 63
SUBTRACT 18 to BOTH SIDES
9u + 18 - 18 = 63 - 18
CANCEL out: 18 - 18 because that gives you 1
KEEP: 63 - 18 because that helps solve for u
63 - 18 = 45
NEW EQUATION: 9u = 45
DIVIDE 9 to BOTH SIDES
9u/9 = 45/9
CANCEL out: 9/9 because that gives you 1
KEEP: 45/9 because that gives the result of u
u = 45/9
SIMPLIFY ABOVE AND YOU HAVE YOUR ANSWER
u = 5
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
