3(5+3x)-6(2x-4)=12x+19

Question

3(5+3x)-6(2x-4)=12x+19

Answer 1

3(5+3x)-6(2x-4)=12x+19
15+9x-12x+24=12x+19
3(5+3x-4x+8)=12x+19
39-3x=12x+19
20=15x
x=1 1/3

Answer 2

Вот я решила..........

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