Question

Preciso da resolução das equações :)
E) 3x=x+1+7

F) 360+36x=30x

G) 2x+5-5x=-1

H) 5+6x=5x+2

I) x+2x-1-3=x

J) -3x+10=2x+8+1

Answer 1

E) 3x=x+1+7
3x -x= 1+7
2x=8
x= $\frac{8}{2}$
x=4

F) 360+36x=30x
36x -30x = -360
6x= -360
x= $\frac{-360}{6}$
x= -60

G) 2x+5-5x=-1
2x-5x = -1 -5
-3x = -6 . (-1)
3x= 6
x= $\frac{6}{3}$
x=2

H) 5+6x=5x+2
6x -5x = 2 -5
x= -3

I) x+2x-1-3=x
x +2x -x = 1 +3
3x -x= 4
2x= 4
x= $\frac{4}{2}$
x= 2

J) -3x+10=2x+8+1
-3x -2x= 8+1 -10
-5x = 9-10
-5x = -1 . (-1)
5x= 1
x= $\frac{1}{5}$
x= 0,2

Answer 2

3x=x+1+7
3x-x=8
2x=8
x=8/2
x=4

360+36x=30x
36x-30x=-360
6x=-360
x=-360/6
x=-60
2x+5-5x=-1
7x=-1-5
7x=-6
x=-6/7

5+6x=5x+2
6x-5x=2-5
x=-3
x=-3

x+2x-1-3=x
x+2x-x=1+3
2x=4
x=4/2
x=2

-3x+10=2x+8+1

-3x-2x=8+1-10
-5x=-1   (*1)

5x=1
x=1/5

-