body{margin:0;} noscript{z-index: 10000; position: fixed; display: block; height: 100%; width: 100%; background: #fff;} noscript .fa{font-size: 40px; display:block; color: #daa520;} noscript div{margin-top: 6%; padding-left: 20px; padding-right: 20px; text-align: center;} ! You must have JavaScript enabled to use this site.

Big Ideas Math Integrated I, 2016

BI

Big Ideas Math Integrated I, 2016 View details

5. Rewriting Equations and Formulas

Continue to next subchapter

Exercise 6 Page 40

Apply inverse operations to isolate y.

y=3-4x

Practice makes perfect

To solve the given literal equation for y, we will use the Properties of Equality to apply inverse operations on the equation. Remember, only like terms can be combined.

20x+5y=15

LHS-20x=RHS-20x

5y=15-20x

.LHS /5.=.RHS /5.

y=15-20x/5

Write as a difference of fractions

y=15/5-20x/5

Calculate quotient

y=3-4x

Subchapter links

Communicate Your Answer p.35

Monitoring Progress p.36-39

Exercises p.40-42