Beginning Algebra

Combining like terms

100

3y+4y

7y

200

2a+8a

10a

300

3/4x+1/4x

x

400

1/6y+2/3y

5/6y

500

2/5a+3/6a

27/30a

Addition

100

3+y=7

y=4

200

10+a=15

a=5

300

b+6=18

b=12

400

v+12=24

v=12

500

30+b=51

b=21

Subtraction

100

c-8=4

c=12

200

t-10=5

t=15

300

x-45=5

x=50

400

y-9=3

y=12

500

w-50=10

w=60