1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jolli1 [7]
3 years ago
6

Help me solve these please

Mathematics
1 answer:
Burka [1]3 years ago
4 0
<span>______________________________________________________</span>
7y-1=-1+9(y-9)

Add 1 on both sides.
7y=9(y-9)
Distribute.
7y=9y-81
Subtract 7y and add 81 on both sides.
2y=81
y=40.5
______________________________________________________

<span>4c+3=-12+c-1
</span>Subtract 3 on both sides.
4c=-12-1-3+c
Subtract c on both sides.
3c=-16
c=-16/3
______________________________________________________
<span>-(k+1)-10=-5k+3
</span>Add 10 on both sides.
-(k+1)=-5k+13
Distribute.
-k-1=-5k+13
Add 1 and add 5k on both sides.
4k=14
k=4/14
______________________________________________________
-w-10=-9-2(w-8)
Distribute.
-w-10=-9-2w+16
Simplify.
-w-10=-2w+7
Add 2w and 10 on both sides.
w=17
______________________________________________________
-2(n-3)-5=-5n+1
Distribute.
-2n+6-5=-5n+1
Simplify.
-2n+1=-5n+1
Add 5n and subtract 1 on both sides.
3n=0
n=0
______________________________________________________

To make sure you got the right answer, you can check your work by plugging the result back into the question and seeing if both sides become equal. If both sides are equal, then the result is correct.
______________________________________________________
You might be interested in
Check My answers!! Algebra
9966 [12]
1.) 4 - t = 3(t - 1) - 5
4 - t = 3t - 3 - 5
4 - t = 3t - 8
3t + t = 4 + 8
4t = 12
t = 12/4 = 3

2.) 8x - 2(x + 1) = 2(3x - 1)
8x - 2x - 2 = 6x - 2
6x - 2 = 6x - 2
0 = 0
solution is identity.

3.) 3(c - 2) = 2(c - 6)
3c - 6 = 2c - 12
3c - 2c = -12 + 6
c = -6

4.) 0.5(m + 4) = 3(m - 1)
0.5m + 2 = 3m - 3
3m - 0.5m = 2 + 3
2.5m = 5
m = 5/2.5 = 2
m = 2
5 0
3 years ago
Solve for x <br> 8x+1&gt;−31
slavikrds [6]

8x + 1 >  - 31 \\ 8x >  - 1 - 31 \\ 8x >  - 32 \\ x >  \frac{ - 32}{8}  \\ x >  - 4

3 0
3 years ago
Someone please help...​
Rom4ik [11]

Answer:

y=mc

Step-by-step explanation:

4 0
3 years ago
Lucy is tiling her bathroom. She buys white and blue tiles in the
balandron [24]

Answer:

£289.20

Step-by-step explanation:

13:2 = x:16 or 13/2 = x/16

cross multiply: 208 = 2x

simplify: x = 104

16 blue tiles x £2.80 each = £44.80

104 white tiles x £2.35 each = £244.40

44.80 + 244.40 = £289.20

7 0
3 years ago
What is 49 divided by 3 plus 87
ozzi

Answer: 103.3

Step-by-step explanation:

Divide 49/3 and u get 16.3333333333. Then add 16.3333333333 and 87 and get 103.333333333. Round 103.333333333 to the nearest tenth and get 103.3

Hope this helps! #BaconSquad

4 0
3 years ago
Read 2 more answers
Other questions:
  • 3. Simplify. <br> a) 5x + 2(x - y) <br> b) 3a - 2b + 4a - 9b <br> c) 2(x - y) + 3(x - y)
    11·1 answer
  • -8=v/3-3 <br> solve for V
    5·2 answers
  • Anybody know the real answer to this?
    11·1 answer
  • Enter the sum of numbers as a product of their GCF.
    15·1 answer
  • In AXYZ, X = 260 inches, y = 580 inches and ZZ=8°. Find the area of AXYZ, to the
    5·1 answer
  • The sum of two numbers is 32. The larger is 3 less than 6 times the smaller. What is the larger number?
    14·1 answer
  • Select all the equations that are equivalent to this equation.
    12·1 answer
  • Price of 50 kg rice rupees 7650 find the price of 1 kg rice​
    11·2 answers
  • Find the slope of the line passing through points (-1, -7) and (-9, -2).
    14·2 answers
  • Given:<br><br> ∠D and ∠B are right angles<br><br> DC || AB<br><br><br> Prove:<br><br> △ADC ≅ △CBA
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!