Answer:
y = -1
Step-by-step explanation:
((3 • (5y + 2)) - y) - 2 • (y - 3) = 0
Step 2 :
Equation at the end of step 2 :
(3 • (5y + 2) - y) - 2 • (y - 3) = 0
Step 3 :
Step 4 :
Pulling out like terms :
4.1 Pull out like factors :
12y + 12 = 12 • (y + 1)
Equation at the end of step 4 :
12 • (y + 1) = 0
Step 5 :
Equations which are never true :
5.1 Solve : 12 = 0
This equation has no solution.
A a non-zero constant never equals zero.
Solving a Single Variable Equation :
5.2 Solve : y+1 = 0
Subtract 1 from both sides of the equation :
y = -1
One solution was found :
y = -1
Sum f(k)=4k-10 for k=1 to 18.
We sum each term separately and add the sums.
![\sum_1^{18}4k=4\sum_1^{18}k=4[18(1+18)/2]=4*9*19=684](https://tex.z-dn.net/?f=%5Csum_1%5E%7B18%7D4k%3D4%5Csum_1%5E%7B18%7Dk%3D4%5B18%281%2B18%29%2F2%5D%3D4%2A9%2A19%3D684)
Therefore the required sum is 684-180=504
Answer:
<h3>x = 12</h3>
Step-by-step explanation:
Given the triangle MNO which is extended through point O to point P, we are given the followings;
Interior angles;
∠MNO=(3x+11)
∠OMN=(2x+20)
Exterior angle;
∠NOP=(8x−5)
To find x, we will use the theorem, "The sum of the interior angles is equal to the exterior"
Hence;
3x+11+2x+20 = 8x - 5
5x + 31 = 8x - 5
Collect like terms;
5x - 8x = -5-31
-3x = -36
x = -36/-3
x = 12
Hence the value of x is 12
Answer:
2x+5=31 is the most common correct answer
Answer:
Is 11
Step-by-step explanation:
x+(-y)+z —> -5 +(+7)+9 = -5+7+9 = 11
