Question

Resolva em R as equações a seguir:

1) 20 – 3 + 6y


2) 4x – 7 = 2x – 8


3) 6m – 4 = 12 – 9m


4) m + 4 – 3m = 4 + 12m


5) 3 + 4m – 9 = 6m – 4 + 12


6) –5 + 3x + 4 = 11 + 9x


7) 3(x + 2) = 15


8) –2(-m + 2) = 3(2m + 1)


9) 12m + 3(m – 1) = -2(m + 1) + 16

(Preciso do cálculo)​

Answer 1

1) 20 – 3 + 6y

20 - 3 + 6y =0

6y = -20+3

6y = - 17

Y = -17/6

2) 4x – 7 = 2x – 8

2x= -1

X= -1/2

3) 6m – 4 = 12 – 9m

15m= 16

m =16/15

4) m + 4 – 3m = 4 + 12m

+4 - 4 = 12m + 3m -m

0 = 14m

14m = 0

m = 0

5) 3 + 4m – 9 = 6m – 4 + 12

-2m = 14

m= -7

6) –5 + 3x + 4 = 11 + 9x

-12 = 6x

X= -2

7) 3(x + 2) = 15

3x + 6 = 15

X = 3

8) –2(-m + 2) = 3(2m + 1)

2m -4 = 6m + 3

-7 =4m

m= -7/4

9) 12m + 3(m – 1) = -2(m + 1) + 16

12m + 3m -3 =-2m -2 +16

12m +3m +2m = -2 +16 +3

17m = 17

M= 1