Write addition or Subtraction to tell which operation it would be easiest to use to eliminate a variable of the system. Explain your choice.

I believe both addition would eliminate a variable

Step-by-step explanation:

EX: 1/4x = 3

4/1 x 1/4x = 3 x 4/1 =

1x = 12

therefore x = 12 using the inverse properties

This proves addition can eliminate a variable

Srry if this didnt help

But i hope this did.

answer is 8x+24

area of vanessa's patio = length × width

given, length = (3x² + 5x + 10)

width = (x² - 3x - 1)

area of vanessa's patio = (3x² + 5x + 10)(x² - 3x - 1)

= 3x²(x² - 3x - 1) + 5x(x² - 3x - 1) + 10(x² - 3x - 1)

= 3x⁴ - 9x³ - 3x² + 5x³ - 15x² - 5x + 10x² - 30x - 10

= 3x⁴ - 4x³ - 8x² - 35x - 10

hence, expression of vanessa's patio = (3x⁴ - 4x³ - 8x² - 35x - 10)