2 6 solving TwoStep Equations What Youll Learn

2 -6 solving Two-Step Equations What You’ll Learn n. To solve two step equations

Equations: Two-Step n n Two-step equations require students to perform two operations before solving the equation. For example, the equation 3 x - 3 = 18 requires adding 3 to both sides of the equation and dividing both sides of the equation by 3.

Example 1: Find the value of n in the equation 6 n - 9 = 9 n n Step 1: In the equation, solve for the value of n by first getting n alone. Add +9 to both sides of the equation. Step 2: Divide both sides of the equation by 6.

Example 2: Solve for t. t/8 + 3 = 12 n n Step 1: To get the variable alone, subtract 3 from both sides of the equation. Step 2: Isolate the 't' by multiplying by the reciprocal of 1/8, which is 8/1.

Write and solve the equation n The computer club sells 50 more than 3 times as many pins as the chess club. The computer club sell 134 pins. How many pins did the chess club sell? n Assign a variable n n Set up equation n n P = pins sold by the chess club 50 + 3 p = 134 Solve equation n P = 28 pins sold by the chess club

Class project n n Find a partner Solve the following equations n Get all 4 right with the bonus get a free day

Solve the following Equations n A pair of boots cost $10 more than twice the cost of shoes. The boots cost $76. 50. How much does the shoes cost? n Judy has read 3 fewer than 5 times as many books as Lisa. Judy read 17 books. How many did Lisa read?

Solve the following Equations n Three sisters are each less than 45 yrs old and the sum of their ages is 113 years. The mode of their age is 35. What is their ages? n A movie ticket for an adult cost $8 and a child’s cost is $5. 50. one adult is taking a group of children. If the chaperon has $35, how many children are in the group?

Challenge Problem n Survey of 40 shoppers 12 like wheat brand cereal n 23 like crunchy brand cereal n Twice as many dislike both brands as like both brands n n How many shoppers like both brands?