1-4 Literal Equations and Formulas by: Zayd Guelde

Solve It

100

3x=18

x=6

200

x/4=7

28

300

-4x=20

x=-5

400

2x-6/4=5

x=13

500

3x/5-4=2

x=10

Multi Step Rearranging

100

2x+y=z

solve for x

x=z-y/2

200

3a-2b=c

solve for a

a=c+2b/3

300

y=4x-7

solve for x

x=y=7/4

400

b=4c+6

solve for c

c=b-6/4

500

y=2x+3b-5

solve for b

b=y+5-2x/3

Variables on both sides

100

4x+1=2x+9

round to the nearest hundredth if needed

x=4

200

6x-4=8x+8

round to the nearest hundredth if needed

x=-6

300

12y-9=8y+3

round to the nearest hundredth if needed

y=3

400

16x+11=12x-5

round to the nearest hundredth if needed

x=4

500

23y-16=19y+13

round to the nearest hundredth if needed

y=7.25

Word Problems

100

a number plus 7 equals 15

what is the number?

number=8

200

a number minus 4 then added by 2 equals 14

what is the number?

number=16

300

a number multiplied by 2 equals 15

what is the number

number=7.5

400

a number multiplied by 3 and divided by 2 equals 21

what is the number?

number=14

500

a number plus 13 divided by 2 multiplied by 4 equals 36

what is the number?

number=5

extra

100

y=3x+1

solve for x

x=y-1/3

200

a number divided by 4 equals 7

what is the number?

number=28

300

a number multiplied by 7 minus 23 equals 61

what is the number?

number=12

400

v=-12r+6w-4h

solve for w

w=c+12r+4h/6

500

53x+44=41x-57

round to the nearest hundredth if needed

x=-8.42