Solving Equations

one-step equations

100

3+x=-17

x=-20

200

5x=145

x=29

300

14=x/2

x=28

400

-2.5=x/10

x=-25

500

-5.3+x=8.9

x=14.2

two-step equations

100

20-3x=2

x=6

200

3x-4=11

x=5

300

-1=4+x/3

x=-7

400

7.5=x+3/2

x=12

500

x+10/9=2

x=8

multi-step equations

100

6x-2-3x=16

x=6

200

17=x-3-3x

x=-10

300

5(2+4x)=85

x=3.75

400

0.25(x-12)=4

x= 28

500

0.5x-3d+5=0

x=2

variables on both sides

100

5x-1=x+15

x=4

200

3(x-5)=2(x+5)

x=25

300

6x-2=2x+6

x=2

400

2(2x-1)=4(x-2)

INFINITE SOLUTIONS

500

3(x+1.5)=1.5(2x+3)

INFINITE SOLUTIONS

linear equations

100

x=2y+z/4

** solve for z **

z=27

200

7x-y=14

** solve for x **

x=14+y/7

300

pv=nrt

** solve for r **

r=pv/nt

400

3x=a+b+c

** solve for b **

b=3x-a-c

500

p=2x+2w

** solve for x **

x=p-2w/2