1 Step Addition and Subtraction
x+5=12
x=7
3x=21
x=7
x+4=10
x=6
A number plus 7 equals 19.
12
2x=x+7
x=7
y−8=15
y=23
5n=40
n=8
2x+5=15
x=5
Three times a number is 27.
3x+4=19
x=5
a+17=42
a=25
x/4=9
x=36
3y−6=15
y=7
Five more than twice a number is 21.
8
4x−9=27
x=9
m−19=34
m=53
m/6=11
m=66
4m+8=36
m=7
A number divided by 4 equals 12.
48
6x+8=44
x=6
2+k=56
k=54
8p=104
p=13
5a−10=40
a=10
Seven less than three times a number is 29.
12
7x−13=50
x=9