1)5*х+х-3*х+12=33-18 2)9*х-2*х-5*х=64-6*7 3)7*х-5*х+4*х-38=15*2+4 - вопрос №6449972153123318292564673754381524 от anastasiykucher 10.02.2020 06:36

Question

Математика: 1)5*х+х-3*х+12=33-18 2)9*х-2*х-5*х=64-6*7 3)7*х-5*х+4*х-38=15*2+4

anastasiykucher · Answer

1) 5*x+x-3*x+12 = 33-1812 + 3*x = 33-1812 + 3*x = 15x = 3 / (3) x = 12)9*x-2*x-5*x = 64-6*7  2*x = 64-6*7  2*x = 22  x = 22 / (2)  x = 113)7*x-5*x+4*x-38 = 15*2+4 -38 + 6*x = 15*2+4 -38 + 6*x = 34  x = 72 / (6)  x = 12...