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
satela [25.4K]
3 years ago
8

3x+6+6x=42 what is x?

Mathematics
2 answers:
Flura [38]3 years ago
5 0

3x+6+6x=42

9x+6=42

9x+6-6=42-6

9x= 36

Divide by 9 for 9x and 36

9x/9=36/9

x=4

Check answer by using substitution method

3(4)+6+6(4)=42

12+6+24=42

42=42

Answer is x=4

tatiyna3 years ago
4 0

Answer:

x = 4

Step-by-step explanation:

Step 1: Combine like terms

9x + 6 = 42

Step 2: Isolate x by subtracting 6 on both sides

9x = 36

Step 3: Isolate x by dividing by 9 on both sides

x = 4

You might be interested in
Find volume and round to the nearest 100 if necessary.
Ainat [17]

Answer:

1,795.5 m³

Step-by-step explanation:

Volume = base area × height

= [½(11+16)×9.5] × 14

1795.5 m³

7 0
3 years ago
Because triangle XYZ is a right triangle, the side lengths must satisfy the Pythagorean theorem, a2 + b2 = c2, which in this iso
abruzzese [7]

Complete Question

Because triangle XYZ is a right triangle, the side lengths must satisfy the Pythagorean theorem, a² + b² = c², which in this isosceles triangle becomes a² + a² = c². By combining like terms, 2a² = c². Which final step will prove that the length of the hypotenuse, c, is StartRoot 2 EndRoot times the length of each leg?

a) substitute values for a and c into the original pythagorean theorem equation.

b) divide both sides of the equation by two, then determine the principal square root of both sides of the equation.

c) determine the principal square root of both sides of the equation.

d) divide both sides of the equation by 2.

Answer:

c) determine the principal square root of both sides of the equation.

Step-by-step explanation:

Pythagoras Theorem for a right angled triangles states that:

a²+ b²= c²

But for an Isosceles Triangle, where two sides of the triangle are equal, we have:

a²+ a² = c²

By combining like terms

2a² = c²

We square root both sides of the equation.

√2a² = √c

√2a² = c

The final step will prove that the length of the hypotenuse, c, is StartRoot 2 EndRoot times the length of each leg = √2a² = c is Option c.

4 0
3 years ago
Read 2 more answers
If candies are sold at 3 pcs for php.2.00.how many candies can melai get if she has php20.00?​
Marrrta [24]
If you’re saying that 3 pieces costs 2.00 then the answer is 30. 2x10 is the $20.00 so 3x10 = 30 she can buy
8 0
3 years ago
4 Which of the following could be the areas of the three squares shown? ​
Step2247 [10]

Answer:

83 due to the lack of explanation

Step-by-step explanation:

6 0
2 years ago
Determine the equations of the asymptotes: g(x)= <img src="https://tex.z-dn.net/?f=%5Cfrac%7B2x%5E2%2B1%7D%7Bx%2B3%7D" id="TexFo
Likurg_2 [28]

Answer:

  • x = -3
  • y = 2x -6

Step-by-step explanation:

The vertical asymptote is found where the denominator is zero, at x = -3.

The slant asymptote is the quotient of the division: 2x -6.

  g(x) = (2x^2+1)/(x +3)

  g(x) = 2x -6 +19/(x+3)

8 0
3 years ago
Other questions:
  • What is the solution to the inequality 3t+&gt;15
    6·2 answers
  • The quotient of a number and 2 is larger than 3
    13·1 answer
  • Never mind free points and brainlest
    8·2 answers
  • Mariah is playing a simple game of dice. For every 1, 4, or 6 rolled, Mariah will
    6·1 answer
  • Six out of the 114 elements are noble gases. You write the names of all the elements on cards and select a card at random. What
    5·1 answer
  • Which is the least common denominator of the equation 2/9x+2/3=7?
    7·2 answers
  • Answer wasn't 6 I need help!!​
    14·2 answers
  • Please answer this correctly
    8·2 answers
  • If x = 3 and y=-2 then -2xy⁴ is?​
    15·1 answer
  • Directions: For the following systems, determine whether or not the ordered triple (1, -1, -2) is a solution to the equations be
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!