Answer:
2,058
Step-by-step explanation:
first term : a_1 = 6
common ratio r = 7
a_n = (a_1) * r ^(n-1)
a_4 = 6 * 7^(4-1)
a_4 = 6 *7^3
a_4 = 6 * 343 = 2,058
Answer:
Step-by-step explanation:
100 + 100 + 6x + 6 + 12x - 8 = 360 Equation. Collect like terms.
198 + 18x = 360 Subtract 198 from both sides
18x = 360 - 198
18x = 162 Divide by 18
x = 162/18
x = 9
Answer:
1716
Step-by-step explanation:
We can use nCr equation to find this
n=13
r=7
Answer:
The solution is the <u><em>answer </em></u>or the number <u><em>behind the = sign</em></u>
EX::6x+4 (x=7) 6(7)+4=46....46 would be the <u><em>solution</em></u>
Its algebra. The original equation is

To solve for a variable, we reverse the order of operations, beginning with addition/subtraction, and then multiplication/division. To remove a number from one side, we must do the opposite to the other side. In this case, to get rid of the -121 we must add 121 to the -164. This gives us -43. Then, to get the x by itself, we must multiply the other side by 3. -43*3=129
When we are doing the opposite of an operation to the other side, we are really reversing the operation and, to keep both sides equal, we must do whatever we have done to one side to the other side. So when we have -121, we add 121 as it equals 0, therefore it is gone. Since a equation must be balanced, we have to do what we did to the other side (adding 121).