Question

Desarrolla y resuelve las siguientes ecuaciones:
x + 4 = 9
-2 = x + 9
5x - 7x = -6
3x = -6
-4x = -8
-2x = 6
x/3 = 2
5x + 1 = 3x - 4
7x - 3 = 9x + 5
2x - 1 = 5x + 8

Answer 1

Explicación paso a paso:

X+4=9

X=9-4

X=5

-2 = X + 9

-2-9=X

-11=X

5X - 7X = -6

X(5-7)=-6

X(-2)=-6

X=-6/(-2)

X=3

3X = -6

X=-6/3

X=-2

-4X = -8

X=-8/(-4)

X=2

-2X = 6

X=6/(-2)

X=-3

X/3 = 2

X=2.3

X=6

5X + 1 = 3X - 4

5X+1+4=3X

5X+5=3X

5=3X-5X

5=-2X

5/(-2)=X

-5/2=X

7X - 3 = 9X + 5

7X=9X+5+3

7X-9X=8

-2X=8

X=8/(-2)

X=-4

2X - 1 = 5X + 8

2X=5X+8+1

2X-5X=9

-3X=9

X=9/(-3)

X=-3