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
Aneli [31]
2 years ago
8

What is the answer2x+3x-7=42​

Mathematics
2 answers:
Studentka2010 [4]2 years ago
7 0

Answer:

x = \frac{49}{5} or 9.8

Step-by-step explanation:

First, combine like terms. Like terms are terms with the same amount of the same variable.

(2x + 3x) - 7 = 42

5x - 7 = 42

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. PEMDAS is the order of operations, and stands for:

Parenthesis

Exponents (& roots)

Multiplications

Divisions

Additions

Subtractions

~

First, add 7 to both sides of the equation:

5x - 7 (+ 7) = 42 (+ 7)

5x = 42 + 7

5x = 49

Next, divide 5 from both sides of the equation:

(5x)/5 = (49)/5

x = 49/5

x = 9.8

Nostrana [21]2 years ago
6 0

Answer:

\bold{\frac{49}{5} }

Step-by-step explanation:

Hi there!

\bold{2x+3x-7=42}

Add the x's:

\bold{5x-7=42}

Now, move 7 to the right:

\bold{5x=42+7}

\bold{5x=49}

Divide both sides by 5 to isolate x:

\bold{\frac{49}{5} }

Hope it helps! Enjoy your day!

~Just a teen willing to help others

\bold{GazingAtTheStars}

You might be interested in
Writing in Slope-Intercept Form, 4 Ways <br><br> (3, 2) &amp; (-3, -4)
andre [41]

Answer:

y = x +1

Step-by-step explanation:

y= mx + b

where m is the slope and b is the y-intercept

m = (y2-y1)/ (x2-x1) = 2+4 / 3+3 = 6/6 = 1

from the point -slope equation we have

y-y1 = m* (x-x1)

y-3 = 1* ( x-2)

y= x -2+3

y= x +1

so the slope m=1 and the y-intercept b=1

3 0
3 years ago
29x97 broken apart <br> need help now <br> Factors willl mark brainlyest
IgorC [24]

I don't know what you mean by "Broken apart," but I'll do my best...

20 x 90 = 1800

9 x 7 = 63

1800 + 63 = 1863

I hope this helped you! :)

6 0
2 years ago
Solve the equation<br> 7+3m=28<br> A)m=18<br> B)m=11 2/3<br> C)m=9<br> D)m=7
Shtirlitz [24]
Firstly, you would subtract 7 from both sides, leaving you with 3m=21. You would then divide by three in order to be left with total value of m. 3m divided by 3 is m. 21 divided by 3 is 7. Therefore m=7 :)
6 0
3 years ago
This is an isosceles trapezoid.
Ad libitum [116K]

Answer:

105°

Step-by-step explanation:

X and 75 has to add up to 180

so 180 - 75 = 105°

3 0
2 years ago
Through: (-2, -1), slope = -1
oksano4ka [1.4K]

y= -1x -3

that's equation of the line

7 0
2 years ago
Other questions:
  • You have $59 in a bank account. You need at least $200 to avoid bank fees. Wrote and solve and inequality to find how much more
    9·1 answer
  • PLEASE HELP! I need this to be graphed but I don't know how. y=–3/4x–1
    10·2 answers
  • The radius of a circular car tire is 12.5 inches. Find the circumference use 3.14 for /
    5·2 answers
  • Determine if they are similar, congruent or neither
    5·1 answer
  • When Jonas does his math homework, he spends an average of 4 minutes on each problem. Last night he spent 1.8 hours on his non-m
    9·1 answer
  • If f(x) = x^2+ 3x + 5 what is f(3+h)?
    8·1 answer
  • Show that (3+4)2−(3−4)2−(4)(4)=32
    7·1 answer
  • Please help me<br>consult the image above​
    5·1 answer
  • I’ll give brainliest
    8·1 answer
  • TU
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!