1) (0,29- 7.10 Х)*10=1,5 2) (13+a):1,7=10,32

Question

1) (0,29- 7.10 Х)*10=1,5 2) (13+a):1,7=10,32

Answer 1

1) (0,29- 7.10 Х)*10=1,5 ⇒0,29- 7.10*Х=1,5/10=0,15⇒0,29-0,15=0,14=7,1*х⇒х=0,14/7,1=14/710=7/355

2) (13+a):1,7=10,32⇒13+а=10,32*1,7=17,544⇒а=17,544-13=4,544

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