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x/3-1/5=4x/15-2/5
3x+1/2-x-3/4=7/4-2x+5/3​


Răspuns :

a) ⁵x/3-³1/5=4x/15-³2/5

5x-4x=-6+3

x=-3

b) 3x+1/2-x-3/4=7/4-2x+5/3

3x-x+2x=-1/2+3/4+7/4+5/3

4x=-1/2+10/4+5/3

4x=-1/2+5/2+5/3

4x=4/2+5/3

4x=³2+5/3

4x=(6+5)/3

4x=11/3

x=11/12