Question

do each exercise in the top from the top box to the corres
1 ( 9 + (7 - 12) ) who
2 ( -4()
5 ( 3 + (-8 - 2) ) in
6 ( 20)
9 ( \frac{12 + 18}{-2} ) people
10 ( \frac{-35}{7})
13 ( 7 cdot -7 cdot 2 ) the
14 ( ()
17 ( -5(-9 + -6) ) sides
18 ( ()
21 ( \frac{-21 - 9}{-5} ) agree
22
-63 -10
-19 16
11 8

Explanation:

Step1: Solve parentheses first

$9 + (7 - 12) = 9 + (-5)$

Step2: Add the two values

$9 + (-5) = 4$

Step3: Solve parentheses first

$3 + (-8 - 2) = 3 + (-10)$

Step4: Add the two values

$3 + (-10) = -7$

Step5: Calculate numerator first

$\frac{12 + 18}{-2} = \frac{30}{-2}$

Step6: Divide the values

$\frac{30}{-2} = -15$

Step7: Multiply left to right

$7 \cdot -7 \cdot 2 = -49 \cdot 2$

Step8: Complete the multiplication

$-49 \cdot 2 = -98$

Step9: Solve parentheses first

$-5(-9 + -6) = -5(-15)$

Step10: Multiply the values

$-5(-15) = 75$

Step11: Calculate numerator first

$\frac{-21 - 9}{-5} = \frac{-30}{-5}$

Step12: Divide the values

$\frac{-30}{-5} = 6$

Answer:

1. $9 + (7 - 12) = 4$
2. $3 + (-8 - 2) = -7$
3. $\frac{12 + 18}{-2} = -15$
4. $7 \cdot -7 \cdot 2 = -98$
5. $-5(-9 + -6) = 75$
6. $\frac{-21 - 9}{-5} = 6$