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
malfutka [58]
3 years ago
11

How do you solve this

Mathematics
2 answers:
jeyben [28]3 years ago
7 0
7x-9=-4x+90
You need to put x in one side.
So it will be 7x+4x=90+9
11x=99 now divide 11 on both sides
11x/11 = 99/11
So final answer is x=9
Alex_Xolod [135]3 years ago
7 0

7x - 9 = -4x + 90

11x - 9 = 90

11x = 99

x = 9


You can check by substituting the 9 for the x value.

7(9) - 9 = -4(9) + 90

63 - 9 = -36 + 90

54 = 54



You might be interested in
A and B are vertical angles. If m A = (3x+3)° and m B= (4x-8)°, then find the value of x.
iogann1982 [59]

Answer: x=11

Step-by-step explanation:

First, since angle A and angle B are vertical angles, that means that they are congruent. If they are congruent, then the m of angle A equals the measure of angle B. So, (3x+3)=(4x-8). Simplify using algebra so that in the end, you will find that x=11.

3x+3=4x-8

3=x-8

11=x

6 0
3 years ago
Find the first three terms of the sequence below. T n = n 2 + 3 n + 4
madam [21]

Answer:

9,14,19

Step-by-step explanation:

You seem to be giving the expression 2n+3n+4.

Now simplify

An = 5n+4

Fill in n

5(1) +4

5(2) +4

5(3)+4

After solving and simplifying you see 9, 14 and 19 are the first 3 terms.

6 0
3 years ago
What is the probability of a coin being tossed 7 times and landing on all heads?
mote1985 [20]
A tree diagram can be drawn for a clearer understanding. The branches of the tails can be ignored since we are not concerned about that. To find the probability along the branches, we just have to multiply the probabilities of each branch, giving you an answer of 1/128

4 0
3 years ago
Which ordered pair must be removed to make the relation a function. {(1, −5), (2, −4), (3, 4), (4, 3), ( 3, -4)}
Elena-2011 [213]

Answer:

I actually have no idea

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
I will give brainliest<3
Ne4ueva [31]

Answer:

4100 workers

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • -(4w^3-z+1) +2(w^3-3z)<br><br> Someone help !!
    12·1 answer
  • How would you determine the distance between (6,8) and (2,-3)
    7·1 answer
  • N divided by 3/5=13 1/3
    8·1 answer
  • Determine whether the following is a statistical question. How many teeth does Edna have in her mouth?
    12·2 answers
  • Use the distributive property to write the following expression without parentheses. -3/5(5x-15y)
    7·2 answers
  • I need help with just 1 and 2.
    7·1 answer
  • Many questions are difficult or nearly impossible to answer using table 2 in its current form. Since computing the answers to th
    11·1 answer
  • Pls pls pls help me pls is for a quiz
    11·1 answer
  • Find the <br> n<br> th<br> term of the sequence that starts with 31, 35, 39, 43
    12·1 answer
  • Each cement block weighs 0.6 kilograms. How much do 10 blocks weigh in total?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!