72 but there is such a thing as a CALCULATOR
U = 4 x 18 U = 72
18+18+18+19+23+23+24+24=167
69
No.
72 but there is such a thing as a CALCULATOR
For example: 8 + 8 = 16 If you know that equals 16 then 2 more would be 18.
2+14=16
U = 4 x 18 U = 72
How do you add 2x plus 3y equals 18 in 5x-y equals 11
18+18+18+19+23+23+24+24=167
No.
21
69
No.
The Answer is Commutative Property
49+18= 67