Question

pomocy jak to rozwiązać to są rOwnania 3x-5=x+8 8x+4=-7-3x

Answer 1

3x 5=x+8/-x                                                             8x +4= 7 3x /-3x

2x 5=8/-5                                                                 5x+ 4=7/-4

2x=3/:2                                                                     5x=3/ :5

1x= 1,5                                                                     1x=0,6

 

 

 

 

 

Answer 2

3x-5=x +8

3x = x + 8 + 5

3x= x + 13

3x-x= 13

2x=13

x=6,5

 

8x+4= -7 - 3x

8x + 3x = -7  -4

11x= -11

x= -1