Equation rules Flashcards
1
Q
Addition
10x +2x =
A
10x +2x = 12x
2
Q
Addition
5x +3y + 10x=
A
5x+3y +10x=
5x+10x+ 3y=
15x +3y (we cannot simplify more)
3
Q
Subtraction
10x -3x=
A
10x -3x=
7x
4
Q
Subtraction
10x +3y -5x=
A
10x+3y-5x=
10x-5x+3y=
5x +3y
5
Q
Subtraction
10x+4xy - 2xy -11x=
A
10x + 4xy - 2xy - 11x=
You need to group the x and xy
10x -11x + 4xy- 2xy=
-x+2xy
6
Q
Multiplication
2x * 3x=
A
2x * 3x=
6x^2
(6 x to the power of 2)
You need to group the number and then the x
7
Q
Multiplication
3xy *4y^2
A
3xy * 4y^2=
12 x y^3
(12 x y to the power of 3)
Group number then the x and y
8
Q
Division
12x / 2
A
12 x / 2=
6x
group the numbers first then x
9
Q
Division
6xy / (2x)
A
6xy / (2x)=
3y (group the numbers first then the x and y)
10
Q
Division
12 (x^5) / [6 (x^3)]
A
12 (x^5) / [6(x^3)]=
2 x^2
Group the numbers first then the x
