1)-4x=-10x-9 4)-5x+2=-10x 2)4(2-3x)=-7+10 5)6(9+4x)=4x-4 3)x-x/12=-13/2 6)x+x/10=-11/2. Created by wimksenia. algebra-ru

1.-10х-9=-4х-10х+4х=9- 6х= 9, х= - 9/6= - 3/2=-1.5Проверка: -10*(-1,5)-9=-4*(-1,5)15-9=66=62.4(2-3x)=-7+108-12х=312х= 8-3 х=5/12Проверка:4(2-3*5/12)=4(2-1,25)=4*0,75=33.x-x/12=-13/2Х(1-1/12)=-13/2Х=-13/12:11/12=13/11

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wimksenia @wimksenia

August 2022 1 3 Report

1)-4x=-10x-9 4)-5x+2=-10x
2)4(2-3x)=-7+10 5)6(9+4x)=4x-4
3)x-x/12=-13/2 6)x+x/10=-11/2

Answers & Comments

tatiana8885

-10х-9=-4х

-10х+4х=9

- 6х= 9, х= - 9/6= - 3/2=-1.5

Проверка:

-10*(-1,5)-9=-4*(-1,5)

15-9=6

6=6

4(2-3x)=-7+10

8-12х=3

12х= 8-3

х=5/12

Проверка:

4(2-3*5/12)=4(2-1,25)=4*0,75=3

x-x/12=-13/2

Х(1-1/12)=-13/2

Х=-13/12:11/12=13/11

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