Like Terms
Combine the like terms
2x + 3 + x + 1
3x + 4
2 + 5
7
Write the expression
Sebastian has four times as many video games as Bob. Let x= the number of video games Bob has.
4x
List the terms.
4x - 2 + 7x + 5
4x, -2, 7x, 5
What polygons make up a cube?
six squares
Combine the like terms
2a + 6 + 3a - 5
5a + 1
-2 + -5
-7
Write the expression
Alex has twice as many cards as Janice plus five. Let x = the number of cards Janice has
2x + 5
List the variable terms
4x - 2 + 7x + 5
4x, 7x
What shapes make up a cylinder?
two circles and a rectangle
Combine the like terms
5 + 3a - 4 - 2a
a + 1
-2 + 5
3
Earnest has triple the cookies Robert has minus 2. Let x = the number of cookies Robert has.
3x - 2
List the constants.
4x - 2 + 7x + 5
-2, 5
What shapes make up a pyramid?
one square and four triangles.
Combine the like terms
-5 + 3a + 7 + 2 + 6a
9a + 4
2 - - 5
7
Jim has twice the number of apples as Kurt.
Fred has four time the number of apples as Kurt.
Let the number of apples Kurt has equal x.
How many apples to Jim and Fred have all together?
Jim: 2x Fred : 4x
2x + 4x =
6x
What are the coefficients?
4x - 2 + 7x + 5
4, 7
Find the surface area of a cube with b = 4 cm and h = 4cm
96 cm2
Combine the like terms
12a - 3a + 6 - 2a
7a + 6
-2 - - 5
3
Katrina has triple the number of sports awards as Sophie. Kelly has twice the sports awards of Sophie plus three more. Let x = the number of sports awards of Sophie. Write a simplified expression that represents the sports awards of the three girls combined.
Katrina : 3x Sophie: x Kelly: 2x + 3
3x + x + 2x + 3 =
6x + 3
Combine like terms
4x - 2 + 7x + 5
11x + 3
Find the surface area of the cylinder on the board.
125.6 in2