Question

10x+7=3
3-4x=x-12
поможете

Answer 1

10х+7=3
10х=-4
х=-0,4

3-4х=х-12
-4х-х=-3-12
-5х=-15
х=3

Answer 2

10x= - 4
x = - 4 : 10
x= - 0,4
_____________

- 5x= - 15 
x= ( - 15) : ( - 5)
x = 3 
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