Question

2. решить уравнение
3y + 9y = 24
4a + 7a = 22
17m - 8m = 36
4x + 10x - 13 =
3a + 16 + a - 8 = 20​

Answer 1

Ответ:

3y+9y=24

18y=24

y=24-18

y=6

Answer 2

3y + 9y = 24

12y = 24

y = 2

4a + 7a = 22

11a = 22

a = 2

17m - 8m = 36

9m = 36

m = 4

4x + 10x - 13 = ????

3a + 16 + a - 8 = 20

4a = 12

a = 3