Question

ayudaaaaaaa para ahorita porfas doy coronita ​

Answer 1

Respuesta:

1. 9a=15-20+15

9a=10

a=9/10

2. 4x+8= -3x-6

4x+3x= -6-8

7x= - 14

X= -2

3. 7m+2m-15=9-3m

9m-15=9-3m

9m+3m=9+15

12m=24

m=2

Answer 2

Explicación paso a paso:

9a = 15 - 20 + 15

9a = 10

a = 10/9

4x + 8 = -3x - 6

4x + 3x = -6 - 8

7x = -14

x = -14/7 ----> x = -2

7m +  2m - 15 = 9 - 3m

9m + 3m = 9 + 15

12m = 24

m = 24/12 ---> m = 2

-5m + 18 + 20 = +9m - 4

18 + 20 + 4 = 9m + 5m

42 = 14m

m = 42/14 ---> m = 3

4x + 16 = 2x

4x - 2x = -16

2x = -16

x = -16/2 ---> x = -8

7a + 15 + 4a - 12 - a - 3 = 3a + 2 - 7 + 2a

7a + 4a - a - 3a - 2a = 2 - 7 - 15 + 12 + 3

5a = -5

a = -5/5 ---> a = -1