Equation 1: X+Y=30
Equation 2: X-Y=2
Solve Simultaneously:
X+Y=30
+ X-Y=2
_________
2X =32
X=16
Solving for Y:
substitute the value of X:
16+Y=30
Y=30-16
Y=14
The two (2) numbers are: 16 and 14.
It is 21 and 9. Because you halve 30 to get 15, then add 6 to each to get the difference.
29 and 30.
30 and 45
Jeez that's easy 12 and 18
30 plus 30 equals 60 and 60 minus 38 equals 22
The numbers are 30 and 20.
The numbers are 18 and 12
It is 21 and 9. Because you halve 30 to get 15, then add 6 to each to get the difference.
29 and 30.
18 and 12
30 and 45
65 and 35
Jeez that's easy 12 and 18
21 and 9 21 - 9 = 12 21+9 = 30
30 + 18 = 48 30 - 18 = 12 The two numbers are therefore 30 and 18.
I will not answer this since it looks like a question a teacher might ask you.
The two numbers are 25 and 15