Question

resolva as equaçoes a)3(x-2) = 2x -4 b) 2 - 3x = - 5x + 12 c)4x - 5 = 3.(x-1)

Answer 1

a)3 (x-2)=2x-4

3x-6=2x-4

3x-2x= -4+6

x=2

b)2-3x= -5x+12

-3x+5x=12-2

2x=10

x=10÷2

x=5

c)4x-5=3 (x-1)

4x-5=3x-3

4x-3x= -3+5

x=2