Question

Resolva as equações a) 3(2x+3 ) = 3 b) 7 (x - 1) = 2 (x-5) c) 2x-1 = +x+4

Answer 1

Resposta:

3(2x+3)=3

6x+9=3

6x= -6

x=-1

7(x-1)=2(x-5)

7x-7=2x-10

5x=-3

x=

$\frac{ - 3}{5}$

2x-1=x+4

x=5