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decimals

100

solve for x.

2.8x+1.4=8.4

x=2.5

200

Solve for x.

1.8x+1.2x+3=12

x=3

300

0.25(x+4)=6.25

x=21

400

2.1x+4=-7.9x-26

x=-3

fractions

100

1/2(x+4)=6

x=8

200

(4/7)x-2=(4/14)

x=4

300

(1/2)x+3=(2/3)x-1

x=24

400

(x/4)+2=5

x=12

Distributive property

100

-2(x+12)=x-9

x=-5

200

18(x+.5)=9x

x=-1

300

7.5(x+2)=9.5x+3

x=6

400

3(2x+5)-4=2(x+7)+5

x=2

Both sides

100

2x+4=5x+7

x=-1

200

2.5x+4=7.5x-11

x=3

300

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

x=4

400

2((1/2)x+2)+3x=0.25x+1.75x-8

x=-6