Sign In
Ask Question
Andres Cannon
Mathematics
21 March, 09:30
Solve for x
4 (2x-1) = 3x-19
+1
Answers (
2
)
Douglas Smith
21 March, 09:38
0
x = - 3
Step-by-step explanation:
In an equation our aim is to find the value of what we are looking for as well as keeping the equation balanced. For example if we took away 4 only from one side then the equation would change so it's an important rule to keep in mind when solving equations, that you need to keep both sides of the equation the same.
4 (2x - 1) = 3x - 19
→ Expand the brackets
8x - 4 = 3x - 19
→ Minus 3x from both sides to isolate - 19 and bring all the x coefficients to one side
5x - 4 = - 19
→ Add - 4 to both sides to isolate 5x
5x = - 15
→ Divide both sides by 5 to isolate x and therefore find the value of x
x = - 3
→ We can substitute x = - 3 back into 4 (2x - 1) = 3x - 19 to see if we have the correct solution, if we end with the same number on both sides then x = - 3 is correct.
4 (2x - 1) = 3x - 19
8x - 4 = 3x - 19
(8 * - 3) - 4 = (3 * - 3) - 19
-24 - 4 = - 9 - 19
-28 = - 28
So x = - 3 is correct
Comment
Complaint
Link
Lorenzo Oconnor
21 March, 09:53
0
X=-3
This is the answer
Comment
Complaint
Link
Know the Answer?
Answer
Not Sure About the Answer?
Find an answer to your question 👍
“Solve for x 4 (2x-1) = 3x-19 ...”
in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
What is the slope of 18x-15y=20?
Answers (1)
A class of 25 student has 15 girls and 10 boys. If one student is chosen at random, what is the probability it is a girl
Answers (2)
Jasmine spent an hour cleaning the house. She spent 25 minutes cleaning the bathroom, 20 minutes doing laundry and the rest of the time she spent cleaning the kitchen. What percent of the time did she spend cleaning the kitchen?]
Answers (1)
The length of country and western songs is normally distributed and has a mean of 200seconds and a standard deviation of 25 seconds. Find the probability that a randomselection of 9 songs will have mean length of 188.58 seconds or less.
Answers (1)
The value of a collector's item is expected to increase exponentially each year. The item is purchases for $500 and its value increases at a rate of 5% per year. Find the value of the item after 4 years.
Answers (1)
New Questions in Mathematics
Quadratic equation whose roots are 6 and 4, and whose leading coefficient is 5.
Answers (1)
How many numbers less than 1000 are divisible by 7?
Answers (1)
What shape has 4 equal sides. and sometimes has 4 right angles
Answers (2)
Together, selina and pam have 132 stamps. selina's collection has 34 more stamps than pams collection how many stamps does pam have
Answers (1)
This morning, Bobby had $50 in his wallet. Then he got $40 in babysitting money. Which integer represents how much money is in Bobby's wallet now?
Answers (2)
Home
»
Mathematics
» Solve for x 4 (2x-1) = 3x-19
Sign In
Sign Up
Forgot Password?