Operations on Real Numbers
5+7.5
12.5
4b+14=22
2
4(x+9)=x+9
-9
Add, Subtract, Multiply, and Divide
(-4)-7
-11
-6k-3=39
-7
5(2x+6)=8x+48
9
What is a set?
A collection of objects/numbers.
(-6)*(4)
-24
15-2(3-2x)=46
9.25
-3(8+3x)=5x+4
-2
What is an element of a set?
(-11)*(-8)
88
2/3y-2/5=5
8.1
2(y-6)=3(y-4)-y
All Real Numbers
What is a subset?
A set that is made up of objects/numbers from another set.
(-3)*4+3-(-5)
-4
200=16(6x-3)
31/12 or 2 7/12
8x-4=2(4x-4)
No Solution
What is a rational number?
A rational number is a number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q.