9(3x-7)+3(8х-11)=3(9х+8)6(7х-11)-13(х-6)=14(2х+1)

Question

9(3x-7)+3(8х-11)=3(9х+8)





6(7х-11)-13(х-6)=14(2х+1)

Answer 1

2 уравнение: 42х-66-13х+78=28х+14; 42х-13х-28х=66-78+14; х=2.

Comments

Вот 1 уравнение:

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27х-63+24х+33=27х+24; 27х+24х-27х=63-33-24; 24х=6; х=6/24=1/4=0,25.