th 7 Grade Mathematics SOLVING ONE STEP EQUATIONS

th 7 Grade Mathematics SOLVING ONE STEP EQUATIONS.

Min. Math

Preview/ pretest

7. EE. 4 Use variables to represent quantities in a realworld or mathematical problem, and construct simple equations and inequalities to solve problems by reasoning about the quantities. I can solve one step equations

What are inverse operations? THINK INDEPENDENTLY & RECORD IDEAS ON WHITE BOARD FOR 30 SECONDS. WHEN TIME IS UP, DISCUSS YOUR IDEAS WITH YOUR PARTNER FOR 1 MINUTE. BE PREPARED TO SHARE.

Exploring Inverses: Addition subtraction Multiplication division Subtraction addition Division multiplication

-6 -6 x = -2 Isolate the variable by using inverse operations. Check your answer by plugging it back in: (-2) + 6 = 4 4=4

-8 -8 - 13 = b

Your Turn!!! y+6=9 y=3 x+3=1 -3 = a + 4 x = -2 -7=a

Orville and Wilbur Wright made the first airplane flights in 1903. Wilbur’s flight was 364 feet. This is 120 feet longer than Orville’s flight. Draw a simulation if needed. Then solve to find the length of Orville’s flight. 364 = O + 120 -120 244 = O - 120

7. EE. 4 Use variables to represent quantities in a realworld or mathematical problem, and construct simple equations and inequalities to solve problems by reasoning about the quantities.

Solve: x – 2 = 1 +2 +2 x =3

Your Turn!!! y– 3=4 -9 y=7 r – 4 = -2 q– 8= r=6 q=-1

Deana practiced the piano for 32 minutes. She practiced 11 minutes less than her brother did. Write and solve an equation to determine how long her brother practiced the piano. 32 = b – 11 +11 43 = b + 11

7. EE. 4 Use variables to represent quantities in a realworld or mathematical problem, and construct simple equations and inequalities to solve problems by reasoning about the quantities.

Solve: 20 = 4 x 4 4 5=x

Solve: -8 y=24 -8 -8 y = -3

Your Turn!!! 30 = 6 x 5=x -6 a = 36 a=-6 -9 d = -72 d=8

Taylor sent 574 text messages last week. On average, how many text messages did she send each day? 574 = 7 t 7 7 82 = t

a = 36

y = 24 y = 21 -180 = b

d = 180 miles

7. EE. 4 Use variables to represent quantities in a real-world or mathematical problem, and construct simple equations and inequalities to solve problems by reasoning about the quantities.

Solve: 16 = 0. 25 n 0. 25 64 = n

Your Turn!!! 6. 4=0. 8 m -2. 8 p = 4. 2 0. 8 = m p = - 1. 5 -4. 7 k = -10. 81 k = 2. 3

The average growth of human hair is 0. 5 inch per month. Find how long it takes a human to grow 3 inches of hair. 0. 5 m = 3 0. 5 m = 6 months

x = 16 d = - 12

p = $62. 00

7. EE. 4 Use variables to represent quantities in a realworld or mathematical problem, and construct simple equations and inequalities to solve problems by reasoning about the quantities.

On your Own Complete Page 441#1 -8, Page 451 #1 -10, and Page 461 #1 -8 Keep when finished and have a red pen/pencil ready to check.

Exit Ticket