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: Modeling Real Life, Grade 6

BI

Big Ideas Math: Modeling Real Life, Grade 6 View details

2. Solving Equations Using Addition or Subtraction

Continue to next subchapter

Exercise 30 Page 256

Use the Subtraction Property of Equality to eliminate the addition.

q= 11

Practice makes perfect

To solve the equation, we have to isolate q on one side. Using the Subtraction Property of Equality, we will subtract 14 from both sides of the equation. This will eliminate the addition and isolate q.

25 = q + 14

LHS-14=RHS-14

25-14= q + 14-14

Subtract term

11 = q

Rearrange equation

q= 11

To check that this solution is correct, let's substitute q= 11 into the original equation and simplify.

25 = q + 14

q= 11

25 ? = 11 + 14

Add terms

25= 25 ✓

Since the left-hand side and right-hand side are equal, q= 11 is the correct solution.

Subchapter links

Try It p.252-254

Self-Assessment for Concepts & Skills p.254

Self-Assessment for Problem Solving p.255

Review & Refresh p.256

Concepts, Skills, & Problem Solving p.256-258