<span>(-y + 5a - 4) + (-3y - a - 5)
= 5a-a-y-3y-4-5 <---- Group like terms
= 4a-y-3y-4-5 <---- Add similar elements
= 4a-4y-4-5 <---- Add similar elements (cont.)
= 4a-4y-9
</span>
Answer:
d. Is the answer from this question
Step-by-step explanation:
3(5+7)-5
3*12-5
36-5
31
Answer:
Judy is 16 years old
Step-by-step explanation:
J = Judy's age
A = Adams age
J = 2A
Six years ago (subtract 6 from the ages)
(J-6) = 5*(A-6)
Distribute
J-6 = 5A - 30
Substitute J = 2A
2A -6 = 5A -30
Subtract 2A from both sides
2A-2A -6 = 5A-2A -30
-6 = 3A -30
Add 30 to each side
-6+30 = 3A-30+30
24 = 3A
Divide by 3
24/3 = 3A/3
8 = A
Adam is 8 years old now
We need to find Judy's age
J = 2A
J = 2*8
J = 16
Judy is 16 years old
Answer:
3 5/6 = 3 10/12
2 1/3= 2 4/12
3-2=1
10/12-4/12= 6/12=1/2
so Kyle read 1 1/2 more books then Jan