Find the unknown value: x + 9 = 16​

Step-by-step explanation:

Given

x + 9 = 16

x = 16 - 9

x = 7

hope it will help :)

Answer and Step-by-step explanation:

Let's solve your equation step-by-step.

x+9=16

Step 1: Subtract 9 from both sides.

x+9−9=16−9

x=7

x=7

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)