Реши уравнение 9х +х - 9х = 5 4х+ 3х - 7х = 6

Question

Реши уравнение 9х +х - 9х = 5 4х+ 3х - 7х = 6

Answer 1

9х+х-9х-59х-3х-7х=6
 -54х=6
х=-54:6
х=-9

Answer 2

9x+x-9x=5
1x=5
x=5

4x+3x-7x=6
0=6
-6=0