Question

Resolva:

a)2x=8+x=2

b)3x+4=-x+3

c)2x+6=3x+4

d)5x-1=8x+8

Answer 1

a)2x=8+x=2

2x - x = 8-2

x = 6

b)3x+4=-x+3

3x + x = 3-4

4x = -1

x = -1/4

c)2x+6=3x+4

2x - 3x = 4-6

-x = -2 (-1)

x = 1

d)5x-1=8x+8

-1 - 9 = 8x-5x

3x = -10

x = -10/3