Question

Реши уравнения : 20+(х+6)=4. 15:3+а=35:7

Answer 1

20+(х+6) =4

20+х+6=4

х=4-20-6

х=-22

15:3+а=35:7

5+а=5

а=5-5

а=0

Answer 2

$1)20 + (x + 6)=4 \\ x + 6 = 4 - 20 \\ x + 6 = - 16 \\ x = - 22 \\ 2) \frac{15}{3} + a = \frac{35}{7} \\ a = \frac{35}{7} - \frac{15}{3} \\ a = \frac{105 - 105}{21} \\ a = 0$