Let's simplify step-by-step.<span><span><span><span>1+<span>8n</span></span>+<span>4n</span></span>+1</span>−<span>2n</span></span><span>=<span><span><span><span><span>1+<span>8n</span></span>+<span>4n</span></span>+1</span>+</span>−<span>2n</span></span></span>Combine Like Terms:<span>=<span><span><span><span>1+<span>8n</span></span>+<span>4n</span></span>+1</span>+<span>−<span>2n</span></span></span></span><span>=<span><span>(<span><span><span>8n</span>+<span>4n</span></span>+<span>−<span>2n</span></span></span>)</span>+<span>(<span>1+1</span>)</span></span></span><span>=<span><span>10n</span>+2
</span></span>Answer:<span>=<span><span>10n</span>+<span>2</span></span></span>
Answer:
Step-by-step explanation:
4.2x+4.7=18.6
Multiple each term by 10
42x + 47 = 186
Collecting like terms
42x = 186 - 47
42x = 139
x = 139/42
x = 3 13/42 or 3.3
Answer:
(hope this helps can I pls have brainlist (crown) ☺️)
Step-by-step explanation:
7^8 x 7^3 x 7^4 / 7^9 7^5
= 7^(8+3+4) / 7^(9+5)
= 7^15 / 7^14
= 7^(15-14)
= 7.
When the bases of the numbers are the same when multiplying numbers with exponents, you can just add the exponents like so:
7^8 x 7^3 x 7^4= 7^15
Now, look at the rest of the simplified equation and do the same to the denominator:
7^15 / 7^9 x 7^5 ⇒ 7^15/ 7^14
When the bases are the same in the fraction, you are allowed to subtract the exponents. This will lead you to the simplified answer = 7^15-14 = 7^1 = 7
First you have multiply 6 by both 3x and 8
6*3x = 18x
6*8= 48
18x + 48 + 32 + 12x
now combine like terms
18x + 12x = 30x
48 + 32 = 80
so 30x + 80 is your answer
Answer:
Step by step solution
Step-by-step explanation:
![a_1 = -1\\a_4 = 14\\a_4 = a_1 + 3d\\14 = -1 + 3d\\15 = 3d\\d = 5\\a_1 = -1\\a_2 = 4\\a_3 = 9\\a_4 = 14](https://tex.z-dn.net/?f=a_1%20%3D%20-1%5C%5Ca_4%20%3D%2014%5C%5Ca_4%20%3D%20a_1%20%2B%203d%5C%5C14%20%3D%20-1%20%2B%203d%5C%5C15%20%3D%203d%5C%5Cd%20%3D%205%5C%5Ca_1%20%3D%20-1%5C%5Ca_2%20%3D%204%5C%5Ca_3%20%3D%209%5C%5Ca_4%20%3D%2014)