Question

Помогите решить:
8х+7х=105
37х-21х+8=200

Answer 1

8х+7х=105
(8+7)х=105
15х=105
х=105:15
х=7

37х-21х+8=200
(37-21)х=200-8
16х=192
х=192:16
х=12

Answer 2

8x+7x=105
15x=105
x=105:15
x=7


37x-21x+8=200
16x=200-8
16x=192
x=192:16
x=12