Question

5) -x +3x-12=-4x
6) 9x - x =6+2x​

Answer 1

5) -х+3х-12=-4х

-х+3х+4х=12

6х=12

х=2

6) 9х-х=6+2х

9х-х-2х=6

6х=6

х=1

Answer 2

-x+3x-12=-4x

2x-12=-4x

2x+4x=12

6x=12

x=12:6

x=2

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9x-x=6+2x

8x=6+2x

8x-2x=6

6x=6

x=6:6

x=1