Question

6×-(2×+1)=-{-5×+[-(-2×-1)]}

Answer 1

6×-(2×+1)=-{-5×+[-(-2×-1)]}

6×-2×-1 = - {-5×+[+2×+1]}

6×-2×-1 = - {-5×+2×+1}

4×-1 = - {-3x+1}

4×-1 = +3×-1

4x - 3x = -1+1

x = 0