Question

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Answer 1

Răspuns:

A) x=2

Explicație pas cu pas:

a) x+1/4-1/2x=4/5

4x+1-2x=5

2x+1=5

2x=5-1

2x=4/:2

x=2

b) 1+6/5x-4/5-x=2/5

1/5+6/5x-x=2/5

1+6x-5x=2

1+x=2

x=2-1

x=1

c) 2x+1-3/2x-1=1,5

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

2x-3/2x=3/2

4x-3x=3

x=3