One Step
x-2=8
x=10
2x+5=21
x=9
A letter used to represent a number
Variable
5t-4=t+8
t=3
Sum of 6 and x
6+x
n+7=18
n=11
3w+5=29
w=8
Numbers that can combine and their variable is the same
Like terms
7-3h=3-5h
h=2
5 subtracted from z
z-5
5m=40
m=8
4+10c=74
c=7
Number sentence without an equal sign
Expression
6d+1=15-d
d=2
Add 18 to 4 times y
4y+18
21/p=3
p=7
11y-14=52
y=6
Number sentence with an equal sign
Equation
5t+7=2t+25
t=5
Divide 3 from k
k/3
t/9=9
t=81
(48/m)+21=25
m=12
Finding the value of the variable in an equation
Solve
5k-20=4-3k
k=3
Divide 78 by f, then add 2934 and subtract 3.2
(78/f)+2934-3.2