1)9х-8=4х+ 12 помогите решить
2)9-7(х+3)=5-4х

9х - 8 = 4х + 129х - 4х = 12 + 85х = 20х = 20/5х = 59 - 7*(х - 3) = 5 - 4х9 - 7х - 21 = 5 - 4х-7х + 4х = 5 - 9 + 21-3х = 17х = 17/(-3)х = 5 2/3