Answer:
=−2x−5y
Step-by-step explanation:
Let's simplify step-by-step.
6x−5y−12x+4x
=6x+−5y+−12x+4x
Combine Like Terms:
=6x+−5y+−12x+4x
=(6x+−12x+4x)+(−5y)
=−2x+−5y
<span>let's say, you have 2(x+5)=10
What you do is multiply the x and the 5 by 2 so it now looks like
2x+10=10
The act of multiplying the inside numbers by the number outside the parenthesis is the distributive property. Now using distributive property to remove grouping symbols is similar
</span>Lets say you have 18 + {2 + 3 (6 -1*2)} first you would multiply 2by1
= 18 + {2 + 3(6 - 2)} then subrtact 2 from 6
= 18 + {2 + 3(4)} then multiply 3by 4 take away () grouping signal
= 18 + {2 + 12} then add 2 and 12
= 18 + {14} then take away the last grouping signals
= 18 + 14 then add 18 and 14
= 32
Answer:
62, 000
Step-by-step explanation:
Using A as the variable then B received 2A votes and C received A - 15, 000
Given the total number of votes was 109, 000, then
A + 2A + A - 15000 = 109000, that is
4A - 15000 = 109000 ( add 15000 to both sides )
4A = 124000 ( divide both sides by 4 )
A = 31000
Then B received 2 × 31000 = 62000 votes
Answer:
Step-by-step explanation:
Given the series 8 + 18 + 28 + 38
First, we need to find the sum of the nth term of the sequence as shown
Sn = n/2[2a+(n-1)d]
n is the number of terms
a is the first term = 8
d is the common difference = 18-8 = 28-18 = 10
Substitute
Sn = n/2 [2(8)+(n-1)*10]
Sn = n/2 [16+10n-10]
Sn = n/2[10n+6]
Sn = 2n/2(5n+3)
Sn = n(5n+3)
Sn = 5n²+3n
In Sigma form;
