Solving Single Variable

Solve For "x"

100

x+3=7

x=4

200

2x=19

x=9.5

300

2x-5=25

x=15

400

7x-3=74

x=11

500

-2x+9=43

x=-17

Distributive Property

100

2(x+1)=

2x+2

200

-2(x+7)=

-2x-14

300

-3(x-3)

-3x+9

400

5(x+8)-3

5x+37

500

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

-x+31

Variables on Both Sides

100

2x=x+8

x=8

200

2x=3x-1

x=1

300

5x+8=2x-4

x=-4

400

2(x+1)=3x

x=2

500

3(x-2)=4(x-3)

x=6

Many, one, or no solutions

100

x=x-1

No solution

200

2x=x

One solution

x=0

300

2(x+2)=2x+4

Many solutions

400

3(2x+1)=7x+5-x-2

Many solutions

500

5(x-3)+9=4(x+7)+x

No solution