care sunt valorile lui a, b, si c daca a+2b+3c=19

Question

Mathematics

River Grant

19 December, 02:57

care sunt valorile lui a, b, si c daca a+2b+3c=19

+3

Answers (1)

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Krystan · Answer 1

A:

a + 2 x b + 3 x c = 19

a + 2 x b + 3 x c + - 2 x b = 19 + - 2 x b

a + 3 x c = - 2 x b + 19

a + 3 x c + - 3 x c = - 2 x b + 19 + - 3 x c

a = - 2 x b - 3 x c + 19

Just continue like this now you just have to plug them in and then solve for each one until you get a solid answer for one variable and then plug them in to find the rest.

care sunt valorile lui a, b, si c daca a+2*b+3*c=19

care sunt valorile lui a, b, si c daca a+2b+3c=19