Question

3(1-х)-4(2-х)=7
помогите решить

Answer 1

3-3х-8+4х=7
-3х+4х=7-3+8
Х=12

Answer 2

3(1-х)-4(2-х)=7
3-3х-8+4х=7
1х-5=7
х=7+5
х=12