One-Step equations (+)
a + 3 = 8
x=5
a - 5 = 4
a=9
a/9 = 9
a=81
b + 53 = 74
b=21
x + 8 = 12
x=4
a - 10 = 13
a=23
a/7 = 5
a=35
z - 74 = 23
z=97
a + 9= 16
a=7
a - 11 = 30
a=41
a/10 = 40
a=400
72/a = 12
a=6
x + 6 = 10
a = 4
9/3 = r
r = 3
a/1.5 = 18
a=27
15x=120
x=8
a + 98 = 86
a=-12
a - 19 = 55
a=74
b/4= 12
b=3
What is the letter in an expression called?
What is a variable?