You know that we have to simplify the algebra equation, so first you have to combine x and 2x. X + 2x equals to 3x. Now that we combined x and 2x which makes 3x, we have to do 7 and -8. 7 + -8 which equals to -1. Therefore, the answer to this algebra equation is 3x + -1.
Answer:
![\displaystyle 8,1](https://tex.z-dn.net/?f=%5Cdisplaystyle%208%2C1)
Step-by-step explanation:
Use the Pythagorean Theorem twise [first time for the <em>reflexive </em><em>edge</em> and the second time for the <em>longer leg</em> of the other triangle]:
![\displaystyle a^2 + b^2 = c^2 \\ \\ a^2 + 5^2 = 10^2 \hookrightarrow 100 = 25 + a^2 \hookrightarrow \sqrt{75} = \sqrt{x^2}; 5\sqrt{3}\:[or\:8,6602540378...] = a \\ \\ \\ \\ a^2 + b^2 = c^2 \\ \\ x^2 + 3^2 = 5\sqrt{3}^2 \hookrightarrow 75 = 9 + x^2 \hookrightarrow \sqrt{66} = \sqrt{x^2}; \sqrt{66}\:[or\:8,1240384046...] = x \\ \\ \boxed{\boxed{8,1 \approx x}}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20a%5E2%20%2B%20b%5E2%20%3D%20c%5E2%20%5C%5C%20%5C%5C%20a%5E2%20%2B%205%5E2%20%3D%2010%5E2%20%5Chookrightarrow%20100%20%3D%2025%20%2B%20a%5E2%20%5Chookrightarrow%20%5Csqrt%7B75%7D%20%3D%20%5Csqrt%7Bx%5E2%7D%3B%205%5Csqrt%7B3%7D%5C%3A%5Bor%5C%3A8%2C6602540378...%5D%20%3D%20a%20%5C%5C%20%5C%5C%20%5C%5C%20%5C%5C%20a%5E2%20%2B%20b%5E2%20%3D%20c%5E2%20%5C%5C%20%5C%5C%20x%5E2%20%2B%203%5E2%20%3D%205%5Csqrt%7B3%7D%5E2%20%5Chookrightarrow%2075%20%3D%209%20%2B%20x%5E2%20%5Chookrightarrow%20%5Csqrt%7B66%7D%20%3D%20%5Csqrt%7Bx%5E2%7D%3B%20%5Csqrt%7B66%7D%5C%3A%5Bor%5C%3A8%2C1240384046...%5D%20%3D%20x%20%5C%5C%20%5C%5C%20%5Cboxed%7B%5Cboxed%7B8%2C1%20%5Capprox%20x%7D%7D)
I am joyous to assist you at any time.
Answer:
the first one is likely and the second one is impossible
$55.00 is the interest due