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(3·x-5)÷4+(275-2·30)÷5=53

Răspuns :

(3*x-5)/4+(275-2*30)/5=53
(3*x-5)/4+43=53
3*x-5=(53-43)*4
3*x-5=40
3*x=45
x=45/3
x=15


(3×x-5)÷4+43=53
3×-5=(53-43)×4
3×x-5=40
3×x=45
x=45×3
x=15