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4(3x-5)+3(4x-7)=10x-13

Răspuns :

12x-20+12x-21=10x-13
24x-41=10x-13
24x-10x=-13+41
14x=28
x=28:14
x=2

4(3x-5)+3(4x-7)=10x-13
12x-20+12x-21=10x-13
24x-10x=20+21-13
14x=28
x=28:14
a=2