How to solve a proportion with an expression over another ex 18, (c + 1)/(c - 2) = 4/7

Why is it important to use parentheses in mathematical expressions?

• To make the expression look neat

• To ensure the correct order of operations

• To make the expression longer

• To confuse the reader

What is the first step in applying the distributive property to an equation?

• Subtract the smallest number

• Add all the numbers together

• Multiply each term inside the parentheses by the term outside

• Divide the equation by 2

When you have variables on both sides of an equation, what should you do first?

• Add more variables

• Subtract the smaller variable from both sides

• Get all variables on one side

• Multiply both sides by zero

What is the result of isolating the variable in the equation 4C - 8 = 7C + 7?

• C = 3

• C = -5

• C = 5

• C = -3

How do you solve a proportion when one of the ratios is a fractional expression?

• By ignoring the fractions

• By cross-multiplying and solving for the variable

• By dividing both sides by zero

• By adding fractions