rleiphart1
26.06.2019 •
Mathematics
2(2x-6)=+3x) how do you solve this ?
Solved
Show answers
More tips
- A Auto and Moto Experience the World of the Most Expensive Cars on the Planet...
- S Style and Beauty How to Get Rid of a Double Chin?...
- F Food and Cooking How to Cook Julienne? Recipes and Tips...
- D Dating, Love, Relationships 10 Useful Tips on How to Survive a Breakup?...
- F Food and Cooking Apple Cider Vinegar: The Ultimate Health and Beauty Solution...
- C Computers and Internet Е-head: How it Simplifies Life for Users?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
Answers on questions: Mathematics
- M Mathematics Write an equation in slope-intercept form of the line that passes through (−5, 19) and (5, 13)....
- M Mathematics The average national utility price is $270.48. Over a 6-month period, what is the average utility price in Dallas? How does this compare with the national average? Dallas, TX $400...
- M Mathematics 21. How many kg of an alloy with 90% copper must be added to 6 kg of another alloy with 15% copper to obtain an alloy that is 40% copper? (Must show Work)...
- M Mathematics Which equation represents a proportional relationship between x and y?...
- M Mathematics Hey! im confused on this. ill give more points if you end up being correct :)...
- M Mathematics What is the constant term of the polynomial function P(x) = -5(x - 2)(x - 3)(x + 7)?...
- M Mathematics Kali and Imani each improved their yards by planting daylilies and ornamental grass. They bought their supplies from the same store. Kali spent $93 on 1 daylily and 8 bunches of...
- M Mathematics Use the Exterior Angle theorem to solve for x...
- M Mathematics PLEASE HELP ME ASAP IMDOING FINALS...
- M Mathematics 2х + y = 4 у = 3х – 1...
Ответ:
x = -1
Step-by-step explanation:
first you "remove the parentheses" by multiplying the number on the outside of them to everything on the inside. for instance, -2 x 2x = -4x and -2 x -6 = 12 (because whenever you multiply two negatives, it turns into a positive) then, when there is a minus sign in front of parentheses, you change the sign of everything within the parenthesis leaving you with a positive 5 and a negative 3x. so now you have a much simpler equation of -4x + 12 = 8 +5 -3x
next you want to of course add the 5 and the 8 to make it even more simple which would leave you with the equation:
-4x + 12 = 13 - 3x
The next thing you need to do is get the unknown variable on one side of the equation. So you do add 4x do get the x on the right side which would leave you with 12 = 13 - 3x + 4x
So now you can do the same thing to the 13 to try to get it on the left by subtracting 13 from both sides
12 - 13 = -3x + 4x
now you make the equation simple by "combining the like terms" (which is something you'll hear a lot in algebra class)
making you equation -1 = 1x
or just -1 = x because when you multiply something by 1, it's the same.
Ответ: