Answer:
p = -7
a = 10
Step-by-step explanation:
Question 1:
Step 1: Write out equation
-22 = 12p - 2(5p + 4)
Step 2: Distribute
-22 = 12p - 10p - 8
Step 3: Combine like terms (p)
-22 = 2p - 8
Step 4: Add 8 to both sides
-14 = 2p
Step 5: Divide both sides by 2
-7 = p
Step 6: Rewrite
p = -7
Question 2:
Step 1: Write out equation
11a - (4a - 7) = 77
Step 2: Distribute
11a - 4a + 7 = 77
Step 3: Combine like terms (a)
7a + 7 = 77
Step 4: Subtract 7 on both sides
7a = 70
Step 5: Divide both sides by 7
a = 10
