Name the two numbers x & y , you can form these equations:
x + y = 21
x - y = 19
Solve the system by substitution:
x - y = 19 --> x = 19 + y
19 + y + y = 21
19 + 2y = 21
2y = 2
y = 1
But, X + y = 21
X + 1 = 21
x = 20
5
[8] and [10].
3 & 5.
Difference. A sum is the result of adding two numbers, and a difference is the result of subtracting two numbers.
Two numbers with a sum of 4 and a difference of 9 are -6.5 and 2.5.
The difference of two numbers is 8. Their sum is 22. What are the two numbers?
5
3 & 5.
[8] and [10].
"the difference between a number and eight is twenty-two
The sum of two numbers between 20-40 is 58. The difference is 12
The sum or the difference between two irrational numbers could either be rational or irrational, however, it should be a real number.
212
10 2
24 and 21?
The difference is a subtraction sum between two or more numbers. A single number cannot have a difference.
5 + 3 =8 and 5-3 = 2 The difference between the two numbers is 2.