Question

pls ans its urgent ​

Answer 1

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(-3xyz) (3x-5y + 7z) = -9x²yz + 15xy²z - 21xyz²

Answer 2

Answer:

Simplifying

3x + -5y + -7z = 0

Solving

3x + -5y + -7z = 0

Solving for variable 'x'.

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

Add '5y' to each side of the equation.

3x + -5y + 5y + -7z = 0 + 5y

Combine like terms: -5y + 5y = 0

3x + 0 + -7z = 0 + 5y

3x + -7z = 0 + 5y

Remove the zero:

3x + -7z = 5y

Add '7z' to each side of the equation.

3x + -7z + 7z = 5y + 7z

Combine like terms: -7z + 7z = 0

3x + 0 = 5y + 7z

3x = 5y + 7z

Divide each side by '3'.

x = 1.666666667y + 2.333333333z

Simplifying

x = 1.666666667y + 2.333333333z