Question

9z - 6+ 7z = 16z - 6

Answer 1

Both sides are equal. z has no solution. The input is an identity. It is true for all values.

Explanation:

9z - 6 + 7z = 16z - 6

16z - 6 = 16z - 6

Both sides are equal. z has no solution. The input is an identity. It is true for all values.

Answer 2

z = z

Explanation:

first you should combine like terms on the left side of the equation

9z + 7z = 16z

now rewrite

16z-6 = 16z-6

add 6 to both sides

16z = 16z

divide both sides by 16

z = z