Language of Algebra
The letters used in algebra are called:
Pronumeral or variable
Substitute x=3, evaluate 5x
15
Simplify the following: 7t+2t-3t
6t
Simplify: 7d x 9
63d
True or false: the constant term in the expression in 5x + 7 is 5
False
Substitute y=6 and x=3, evaluate 5x2+2y
57
Simplify -4x2 + 3x2
-x2
Simplify: -5xy * 2yz
-10xy2z
What is the coefficient in the expression: -3x+7
-3
are a+b and b+2a-a equivalent expressions?
Yes
What is an expression for the perimeter of a rectangle with length 3x and breadth 4x in simplest form
perimeter =14x
Simplify:
2x2y * 5yx2
________
12xy
5x3y
____
6