Algebra
Root
fraction and decimal
%
fraction to decimal
100

5(x+6)=10

5x+30=10

5x=-20

x=-4

5(-4+6)=10

100

√7

2.645...

100

1/2 = 3x

x=1/6

100

30% of 60

18

100

3/4

0.75

200

3(x-2)-8(x+4)=6

3x-6-8x-32=6

3x-8x-6-32=6

-5x-38+38=6+38

-5x=44

X=-8 4/5

200

√20

4.472...

200

1/3x+8/12=8

x=22

200

20% of 120

24

200

123/56

2.196

300
3x+1x-(4x+6)=4x-15


3x+1x-4x-6=4x-15

-6=4x-15

9=4x

9/4=x

2 1/4=x

300

√12

3.464...

300

12x+0.5+0.3=32

x=2.6

300

12% of 245

29.4

300

2537/6836

0.371

400

-6x+4x-3x-38+34-123=-5x+234


-5x-127+127=-5x+234+127

-5x=-5x+361

0=361

-6+4-3=38+34-123=239❌


400

√120

10.954... 

400

23-5/6x+8/7+23=8

x=46 34/35

400

123% of 324

398.52

400

0.54/2.234

0.241

500

-12(63x+21)=43x-123

x=72/653

500

2√5 x √5

=2x√5x√5

=2x√25

=2×5

=10

500

3/4-12(x+3)=5x-3

x=-61/68

500

145% of 2385

3458.25

500

12030/23568

0.51

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