The "answer" is a pair of numbers that, if you put one of them in place of 'x'
and the other one in place of 'y', then the statement "-3y = -54x + 18" is true.
There are an infinite number of different correct "answers".
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
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
18 + 10 + 28 + 10 = 66