Question

5.a) 2(x+2)=x-1
b)5(x-5)=2x-7

Answer 1

A) 2(x+2)=x-1
   2x + 4 = x - 1
   2x-x    = -4-1
       x    = -5

b) 5(x-5) = 2x-7
    5x - 25= 2x-7
    5x-2x = 25-7
     3x     = 18
       x     = 18/3
       x    = 6

Answer 2

A) 2(x + 2) = x - 1
= 2x + 4 = x - 1
= 2x - x  = - 1 - 4
=     x    = -5

Jadi hasilnya x = -5

b) 5(x - 5) = 2x - 7
= 5x - 25 = 2x - 7
= 5x - 2x = -7 + 25
=     3x    = 18
=      x    = 18 / 3
=      x    = 6

Jadi hasilnya x = 6

Semoga membantu ^_^
maaf kalau salah