Terms
Which is the constant?
7x + 12
12
13 = 11 – 4x
x= 6
−3x + 5 = 2
x = 1
input (m) output (n)
10 80
6 48
3 24
m x 6 = n
input (m) output (n)
4 32
7 62
10 92
(m x 10) - 8 = n
What is the numerical coefficient?
91t + 4 + (2 x 15)
91
15 – 2b = –9
b=3
2t − 5 = −15
t = -5
input (m) output (n)
36 6
90 15
120 20
m / 6 = n
input (m) output (n)
22 8
34 12
43 15
(m + 2) / 3 = n
Which is the variable?
8y + 17- (19y/2)
y
-7 + 4r = -15
r= -2
3v-5 = 40
v = 15
input (m) output (n)
13 33
70 90
27 57
m + 20 = n
input (m) output (n)
19 24
20 26
21 28
What is an expression?
An expression is a number, a variable, or a combination of numbers and variables and operation symbols.
4 + 3y = 31
y= 9
8 = 3a – 4
a= 4
input (m) output (n)
74 24
120 70
1060 1010
input (m) output (n)
45 28
81 32
99 34
(m/9) + 23 = n
What is an equation?
An equation is made up of two expressions connected by an equal sign.
8x + 38 = 102
x=8
13 + 7x = 27
x= 2
input (m) output (n)
19 76
40 160
23 92
m x 4 = n
input (m) output (n)
4 8
7 9
10 10