Review 1-Step Algebraic Equations

Addition

100

Find the value of the variable:

x+2=5

x=3

200

Find the value of the variable:

y+8=19

y=11

300

Find the value of the variable:

z+11=32

z=21

400

Find the value of the variable:

j+43=92

j=49

500

Find the value of the variable:

r+127=329

r=202

Subtraction

100

Find the value of the variable:

x-2=5

x=7

200

Find the value of the variable:

y-9=12

y=21

300

Find the value of the variable:

z-23=32

z=45

400

Find the value of the variable:

j-65=77

j=142

500

Find the value of the variable:

r-192=215

r=407

Multiplication

100

Find the value of the variable:

x·5=15

x=3

200

Find the value of the variable:

y·9=72

y=8

300

Find the value of the variable:

21·z=84

z=4

400

Find the value of the variable:

32j=192

j=6

500

Find the value of the variable:

15r=270

r=18

Division

100

Find the value of the variable:

x÷4=2

x=8

200

Find the value of the variable:

y÷4=12

y=48

300

Find the value of the variable:

z÷12=5

z=60

400

Find the value of the variable:

j÷4=281

j=1124

500

Find the value of the variable:

r÷12=15

r=180

Various

100

What is the inverse operation of subtraction?

Addition

200

What is the inverse operation of division?

Multiplication

300

Find the value of the variable:

z+21+3=32

z=8

400

Find the value of the variable:

r·6·4=120

r=120

500

x-3+18-5+15=45

x=20