1) Resolva em R as equações a seguir: a) 3 + x = 0
b) 23x + 2 = 2
c) 12 - 7 + 4x = 25
d) 5x - 3x = 30
e) 4x + 10 = 45 - 3x​

Step-by-step explanation:

a)3 +X =0(Take the 3 to the left side)

Therefore: X=-3

b)23x + 2 =2 (Take the 2 to the left side)

Therefore:23x =0

(divide 23 with 23 and divide 0 by 23)

Therefore: X= 0

c) 12- 7+ 4X = 25(Take 12 and -7 to the left side)

Therefore: 4x= 25- 12+7

Therefore: 4x= 20(Then divide 4 by 4 and then divide 20 by 4)

Therefore: X=5

d)5x -3x =30

Therefore:2x =30(divide 30 by 2)

Therefore:X=15

e)4x +10= 45-3x(Move the like terms)

Therefore:4x+3x =45-10

Therefore:7x =35(Divide 7 by 7 and then divide 7 by 35)

Therefore:X= 5.

answer: e 9, 5.75

step-by-step explanation:

step 1

find the variation ab in the x coordinate

delta x=(x2-x1)=10-> 8 units

find the variation ab  in the y coordinate 

delta y=(y2-y1)=6-> 2 units

step 2

find the coordinates point c

  x coordinate 

cx=ax+delta x*2/> cx=2+8*(2/> cx=3

  y coordinate 

cy=ay+delta y*2/> cy=4+2*(2/> cy=4.25

the coordinates of point c are (3,4.25)

step 3

find the coordinates point d

  x  coordinate 

dx=ax+delta x*4/> dx=2+8*(4/> dx=4

  y  coordinate 

dy=ay+delta y*4/> dy=4+2*(4/> dy=4.5

the coordinates of point d are (4, 4.5)

step 4

find the coordinates point e

  x  coordinate 

ex=ax+delta x*4/> ex=2+8*(6/> ex=5

  y  coordinate 

ey=ay+delta y*4/> ey=4+2*(6/> ey=4.75

the coordinates of point e are (5, 4.75)

step 5

find the coordinates point f

  x  coordinate 

fx=ax+delta x*4/> fx=2+8*(8/> fx=6

  y  coordinate 

fy=ay+delta y*4/> fy=4+2*(8/> fy=5

the coordinates of point f are (6,5)

step 6

find the coordinates point g

  x  coordinate 

gx=ax+delta x*4/> gx=2+8*(10/> gx=7

  y  coordinate 

gy=ay+delta y*4/> gy=4+2*(10/> gy=5.25

the coordinates of point g are (7,5.25)

step 7

find the coordinates point h

  x  coordinate 

hx=ax+delta x*4/> hx=2+8*(12/> hx=8

  y  coordinate 

hy=ay+delta y*4/> hy=4+2*(12/> hy=5.5

the coordinates of point h are (8,5.5)

step 8

find the coordinates point i

  x  coordinate 

ix=ax+delta x*4/> ix=2+8*(14/> ix=9

  y  coordinate 

iy=ay+delta y*4/> iy=4+2*(14/> iy=5.75

the coordinates of point i are (9,5.75)

- r3ktforgood ☕