Solve the System of Equations by Using Substitution $$\left\{ \begin{array} { c } x + 7 y = 7 \\3 x - 8 y = - 8\end{array} \right.$$

question 115

Multiple Choice

Solve the system of equations by using substitution.
- $$\left\{ \begin{array} { c } x + 7 y = 7 \\3 x - 8 y = - 8\end{array} \right.$$

• A) x = 1, y = 0
• B) x = 0, y = 0
• C) x = 0, y = 1
• D) x = 1, y = 1

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Definitions:

Proportional

Pertaining to a relationship or situation where two quantities vary directly with each other.

Taxable Income

The amount of income that is subject to taxation, after all allowable deductions, credits, and exemptions.

Total Income

The sum of all earnings received by an individual or entity, encompassing wages, salaries, profits, rents, and other forms of earnings.

Progressive Tax

A taxation system where the tax rate increases as the taxable amount or income increases, placing a higher burden on wealthier individuals.