Question

1) 2(х+45)=17+14х

2) 3(2х-9)=5(х-4)

Answer 1

1)2(x+45)=17+14x

   2x+90=17+14x

   2x-14x=17-90

   -12x=73

    x=73:12=6.08

2)3(2x-9)=5(x-4)

    6x-27=5x-20

    6x-5x=-20+27

    x=7

Answer 2

2х+90-17-14х=0
-12х+73=0
12х=73
Х=73/12=6,08

6х-27-5х+20=0
Х-7=0
Х=7

Comments

3-ті 9-ға көбейтсе 27 болады.

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Шатасып кетiппiн.

Answer 3

2x+90=17+14x                                    

-12x=73

x=6.08

2)6х-27=5х-20

х=7