7 + [-2] x 3 +[-2] =

7 + (-2) x 3 + (-2) = 7 + (-6) + (-2) = 1 + (-2) = -1

=7+[-2]×3+[-2]
=5×3+[-2]
=15+[-2]
=13
#mohon maaf kalau jawabannya salah.