Question

integer chapter simplify a) 7 - 8 + (-2) + 3x (-4)
b) 9 - {7 - 24+ (8 + 6 x 2-16)}
c) (-3) (-12) + (-4) + 3 x 6
d) 2 x 6 - [9 - 10 + 30 = (4-9)}]​

Answer 1

a)7-8+(-2)+3×(-4)

=7+8-2-12

=15-2-12

=13-12

=1

b)9-{7-24+(8+6×2-16)}

=9-{7-24+(8+12-16)}

=9-{7-24+(20-16)}

=9-{7-24+4}

=9-(-13)

=9+13

=22

c)(-3)(-12)+(-4)+3×6

=36-4+18

=32+18

=50

d)2×6-[9-10+30=(4-9)}]

=2×6-[9-10+30=(-5)]

=2×6-[-28/-5]

=12-28/5

=-32/5