Question

7(5n-1 )-2n
please help​

Answer 1

Answer:

n = 0.2121212121

Step-by-step explanation:

Simplifying

7(5n + -1) + -2n = 0

Reorder the terms:

7(-1 + 5n) + -2n = 0

(-1 * 7 + 5n * 7) + -2n = 0

(-7 + 35n) + -2n = 0

Combine like terms: 35n + -2n = 33n

-7 + 33n = 0

Solving

-7 + 33n = 0

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '7' to each side of the equation.

-7 + 7 + 33n = 0 + 7

Combine like terms: -7 + 7 = 0

0 + 33n = 0 + 7

33n = 0 + 7

Combine like terms: 0 + 7 = 7

33n = 7

Divide each side by '33'.

n = 0.2121212121

Simplifying

n = 0.2121212121

Answer 2

7(5n-1) - 2n

=> 35n - 7 - 2n

=> 33n - 7 [simplified expression]

If you need to find zeroes of above expression, then,

n = 7/33

Hope this helps !