(-3)*7+(-2)*(-4)-(-8)*3-(-5)*(-6)
The answer should be -19
If you want to follow step by step solution, then here it is:
Simplify the following:
-3×7-2 (-4)--8×3--5 (-6)
Multiply -3 and 7 together.
-3×7 = -21:
-21-2 (-4)--8×3--5 (-6)
Multiply -2 and -4 together.
-2 (-4) = 8:
-21+8--8×3--5 (-6)
Multiply -1 and -8 together.
-(-8) = 8:
-21+8+8×3--5 (-6)
Multiply 8 and 3 together.
8×3 = 24:
-21+8+24--5 (-6)
Multiply -1 and -5 together.
-(-5) = 5:
-21+8+24+5 (-6)
Multiply 5 and -6 together.
5 (-6) = -30:
-21+8+24+-30
Group the positive and negative terms in -21+8+24-30 together and factor out the minus sign.
-21+8+24-30 = (8+24)-(21+30):
(8+24)-(21+30)
Evaluate 8+24 using long addition.
| 1 |
| 2 | 4
+ | | 8
| 3 | 2:
32-(21+30)
Evaluate 21+30 using long addition.
| 3 | 0
+ | 2 | 1
| 5 | 1:
32-51
Factor out a negative sign in 32-51 in order to subtract.
32-51 = -(51-32):
-(51-32)
Subtract 32 from 51.
| 4 | 11
| 5 | 1
- | 3 | 2
| 1 | 9:
Answer: |
| -19
