( уравнения) 23 *(х-19)= 552 15 * ( 2x+11)=285 7*(123+4х)=749

Question

( уравнения)
23 *(х-19)= 552
15 * ( 2x+11)=285
7*(123+4х)=749

Answer 1

23х-437=552
23х=552+437
23х=989
Х=43
2)30х+165=285
30х=120
Х=4
3)861+28х=749
28х=-112
Х=-4

Answer 2

1) 23x-437=552

23x=552+437

23x=989

x=43

2) 30x+165=285

30x=285-165

30x=120

x=4

3) 861+28x=749

28x=749-861

28x=-112

x=-4