Question

I can identify and use inverses to solve equations with one variable.

Answer 1

`\boxed{x = 4.0497}`

Explanation:

`\boxed{question \: \underline{4}.} \\ 5 {x}^(2) - 7(9.5 + 3) = - 5.5 \\ 5 {x}^(2) - 66.5 - 21 = - 5.5 \\ 5 {x}^(2) = - 5.5 + 87.5 \\ 5 {x}^(2) = 82 \\ {x}^(2) = (82)/(5) \\ {x}^(2) = 16.4 \\ x = √(16.4) \\ \boxed{ x = 4.0496913463}`

♨Rage♨........if you still need my help with the rest....then post each question seperatly.♨