Question

rezolva ce scrie pe caiet

55 de punkte!​

Answer 1

Răspuns:

2x-3=9

2x=9+3

2x=12

x=12÷2

x=6

5x+7=22

5x=22-7

5x=15

x=15÷5

x=3

-3x-3=6

-3x=6+3

-3x=9

x=9÷(-3)

x= -3

-5x+7=20+2

-5x=22-7

-5x=15

x=15÷(-5)

x=-3

10x-8=92

10x=92+8

10x=100

x=100÷10

x=10

-15x-3=-48

-15x=-48+3

-15x=-45

x=3

-3x-12=18

-3x=18+12

-3x=30

x=30÷(-3)

x=-10

-9x+3=-6

-9x=-6-3

-9x=-9

x=1

2x+3x=13+7

5x=20

x=20÷5

x=4

Answer 2

Răspuns:

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