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Two steps
Distributivité
100

v/2 = 8

v=16

100

15 + b = 23

b=8

100

−9x + 1 = −80

x=9

100

−2 = 2 + v/4

v=-16

100

2(x+1)=4

x=1

200

-15x=30

x=-2

200

x − 7 = 13

x=20

200

−15 = −4m + 5

m=5

200

−6 = n/2 − 10

n=8

200

-4(f+6)=-36

f=3

300

−126 = 14k

k=-9

300

m − 9 = −13

m=-4

300

10 − 6v = −104

v=19

300

-2x + 34 = 48

x=-7

300

50=5(6+v)

v=4

400

m/4 = -13

m=-52

400

n + 16 = 9

n=-7

400

−9x − 13 = −103

x=10

400

−6 + x/4 = −5

x=4

400

-3(20-p)=-36

p=8

500

−17x = −204

x=12

500

−17 = x − 15

x=-2

500

x/3 + 5 = -10

x=-15

500

-4 = 3x + 5

x=-3

500

99 = 8(23 3/8 - t)

t=11

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