8. Реши уравнения x-890*20 = 1050 300 + c = 3000:2 y: (1098-998) = 4 x + 880:20 = 1050 3000 + c = 6000:2 (1098-998): y = 4

Решим уравнения по порядку: 1) $$x - 890 \cdot 20 = 1050$$ $$x - 17800 = 1050$$ $$x = 1050 + 17800$$ $$x = 18850$$ 2) $$300 + c = 3000 : 2$$ $$300 + c = 1500$$ $$c = 1500 - 300$$ $$c = 1200$$ 3) $$y : (1098 - 998) = 4$$ $$y : 100 = 4$$ $$y = 4 \cdot 100$$ $$y = 400$$ 4) $$x + 880 : 20 = 1050$$ $$x + 44 = 1050$$ $$x = 1050 - 44$$ $$x = 1006$$ 5) $$3000 + c = 6000 : 2$$ $$3000 + c = 3000$$ $$c = 3000 - 3000$$ $$c = 0$$ 6) $$(1098 - 998) : y = 4$$ $$100 : y = 4$$ $$y = 100 : 4$$ $$y = 25$$ Ответы: $$x = 18850$$ $$c = 1200$$ $$y = 400$$ $$x = 1006$$ $$c = 0$$ $$y = 25$$