Terms
What is a variable?
An unknown value represented by a letter
Simplify the expression:
2x+4x+7
6x+7
y= 4
y + 8
12
2y+ 3x+ 3x -7
2y-6x-7
What is a constant?
A number by itself in an expression
7+12+x
19+x
x=30
56 - x
26
7 added to 40 minus 3
7+40-3
What is a coefficient?
A number being multiplied by a variable - 3x
56+10+10y+3z
66+10y+3z
70-40 + 2x
x=3
36
The difference of x and 4
x-4
3x+2y+6
Identify the terms:
3x, 2y, 6
6x+4+2x+3
8x+7
99+x+y+z
x=3 y=2 z=10
115
the quotient of b and 9
b /9
75y + 23 + 2w
What is the constant?
23
800 - 200 +100 + 4c
700+4c
is Mr M the best?
the sum of 4 and 2 times x
4+2x