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a fost răspuns

Sa se rezolve in multimea numerelor naturale ecuatiile.
a) 7X(inmultit)(3x-5)+23=14
b) 51-2X(7x+2)=19
c)(4x + 5):13+36=41
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Răspuns :

Dariaroxana2222
c)(4x+5):13+36=41
(4x+5):13=41-36
(4x+5):13=5
4x+5=13x5
4x=65-5x=60:4=15
b)2x(7x+2)=51-19
7x+2=32:2
7x=16-2
x=14:7=2

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