Question

. . .

g) 3/4(2-3x) = -6

h) 1/5 (x-3) = 9-x

i)0,6+x/2 = x+1

Answer 1

g) 3/4(2-3x) = -6 / *4

3(2 - 3x) = -24

6 - 9x = -24

-9x = -24 + 6

-9x = -18 /:(-9)

x = 2

 

h) 1/5 (x-3) = 9-x / *5

x - 3 = 45 - 5x

x + 5x = 45 + 3

6x = 48 /: 6

x = 8

 

i)0,6+x/2 = x+1 / *10

6 + 5x = 10x + 10

5x - 10x = 10 - 6

-5x = 4 /:(-5)

x = -4/5