Question

1.5+x=2

2x-3=-2

7,2:x=3.6

Answer 1

1.5+x=2
x=2-1,5
x=0,5
Verificarea: 1,5+0,5=2

2x-3=-2
2x=3-2
2x=1
  x=2-1
  x=1
Verificarea: 2-1-3=-2

7,2:x=3,6
x=7,2:3,6
x=2

Verificarea: 7,2:2=3,6

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